what are the different forms of thesis statements

How To Write 3 Types Of Thesis Statements

A thesis statement is “a short summary of the main idea, purpose, or argument of an essay that usually appears in the first paragraph.” It’s generally only one or two sentences in length.

A strong thesis statement is the backbone of a well-organized paper, and helps you decide what information is most important to include and how it should be presented.

What is a good thesis statement?

This thesis statement, for example, could open a paper on Dr. Martin Luther King Jr.’s importance as a civil rights leader: “Dr. Martin Luther King Jr. was one of the most influential figures of the American civil rights movement. His moving speeches and nonviolent protests helped unite a nation divided by race.”

This example lays out the writer’s basic argument (King was an important leader of the American civil rights movement), offers two areas of evidence (his speeches and nonviolent protests), and explains why the argument matters (united a divided nation).

A good thesis statement delivers a clear message about the scope of the topic and the writer’s approach to the subject. In contrast, poor thesis statements fail to take a position, are based solely on personal opinion, or state an obvious truth. For example, “Democracy is a form of government,” is a weak thesis statement because it’s too general, doesn’t adopt a stance, and states a well-known fact that doesn’t need further explanation.

What are the different types of thesis statements?

Thesis statements can be explanatory , argumentative , or analytical . The type of paper determines the form of the thesis statement.

1. Explanatory thesis statement

An explanatory thesis statement is based solely on factual information. It doesn’t contain personal opinions or make claims that are unsupported by evidence. Instead, it tells the reader precisely what the topic will be and touches on the major points that will be explored in the essay. An explanatory thesis statement is sometimes also called an expository thesis statement .

For example: The core components of a healthy lifestyle include a nutritious diet, regular exercise, and adequate sleep.

2. Argumentative thesis statement

In an argumentative essay, the writer takes a stance on a debatable topic. This stance, and the claims to back it up, is the argument . Unlike an explanatory thesis statement, an argumentative thesis statement allows the writer to take a position about a subject (e.g., the deeper meaning of a literary text, the best policy towards a social problem) and to convince readers of their stance. The body of the argumentative essay uses examples and other evidence to support the writer’s opinion.

For example: Shakespeares’s Taming of the Shrew uses humor, disguise, and social roles to criticize the lack of power women had in Elizabethan England.

3. Analytical thesis statement

An analytical thesis statement analyzes, or breaks down, an issue or idea into its different parts. Then, it evaluates the topic and clearly presents the order of the analysis to the reader.

For example: The school’s policy to start its school day an hour later revealed three related benefits: students were more alert and attentive in class, had a more positive about school, and performed better in their coursework.

How to write a thesis statement

Writing a thesis statement requires time and careful thought. The thesis statement should flow naturally from research and set out the writer’s discoveries. When composing a thesis statement, make sure it focuses on one main idea that can be reasonably covered within your desired page length. Try not to write about the entire history of America, for example, in a three-page paper.

Although deciding upon a thesis statement can be challenging and time-consuming, a strong thesis statement can make the paper both easier to write and more enjoyable to read. Don’t worry: we’re not going to leave you hanging! We’ve got a whole article to help you write an effective thesis statement here .

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Thesis Statements

What this handout is about.

This handout describes what a thesis statement is, how thesis statements work in your writing, and how you can craft or refine one for your draft.

Introduction

Writing in college often takes the form of persuasion—convincing others that you have an interesting, logical point of view on the subject you are studying. Persuasion is a skill you practice regularly in your daily life. You persuade your roommate to clean up, your parents to let you borrow the car, your friend to vote for your favorite candidate or policy. In college, course assignments often ask you to make a persuasive case in writing. You are asked to convince your reader of your point of view. This form of persuasion, often called academic argument, follows a predictable pattern in writing. After a brief introduction of your topic, you state your point of view on the topic directly and often in one sentence. This sentence is the thesis statement, and it serves as a summary of the argument you’ll make in the rest of your paper.

What is a thesis statement?

A thesis statement:

• tells the reader how you will interpret the significance of the subject matter under discussion.
• is a road map for the paper; in other words, it tells the reader what to expect from the rest of the paper.
• directly answers the question asked of you. A thesis is an interpretation of a question or subject, not the subject itself. The subject, or topic, of an essay might be World War II or Moby Dick; a thesis must then offer a way to understand the war or the novel.
• makes a claim that others might dispute.
• is usually a single sentence near the beginning of your paper (most often, at the end of the first paragraph) that presents your argument to the reader. The rest of the paper, the body of the essay, gathers and organizes evidence that will persuade the reader of the logic of your interpretation.

If your assignment asks you to take a position or develop a claim about a subject, you may need to convey that position or claim in a thesis statement near the beginning of your draft. The assignment may not explicitly state that you need a thesis statement because your instructor may assume you will include one. When in doubt, ask your instructor if the assignment requires a thesis statement. When an assignment asks you to analyze, to interpret, to compare and contrast, to demonstrate cause and effect, or to take a stand on an issue, it is likely that you are being asked to develop a thesis and to support it persuasively. (Check out our handout on understanding assignments for more information.)

How do I create a thesis?

A thesis is the result of a lengthy thinking process. Formulating a thesis is not the first thing you do after reading an essay assignment. Before you develop an argument on any topic, you have to collect and organize evidence, look for possible relationships between known facts (such as surprising contrasts or similarities), and think about the significance of these relationships. Once you do this thinking, you will probably have a “working thesis” that presents a basic or main idea and an argument that you think you can support with evidence. Both the argument and your thesis are likely to need adjustment along the way.

Writers use all kinds of techniques to stimulate their thinking and to help them clarify relationships or comprehend the broader significance of a topic and arrive at a thesis statement. For more ideas on how to get started, see our handout on brainstorming .

How do I know if my thesis is strong?

If there’s time, run it by your instructor or make an appointment at the Writing Center to get some feedback. Even if you do not have time to get advice elsewhere, you can do some thesis evaluation of your own. When reviewing your first draft and its working thesis, ask yourself the following :

• Do I answer the question? Re-reading the question prompt after constructing a working thesis can help you fix an argument that misses the focus of the question. If the prompt isn’t phrased as a question, try to rephrase it. For example, “Discuss the effect of X on Y” can be rephrased as “What is the effect of X on Y?”
• Have I taken a position that others might challenge or oppose? If your thesis simply states facts that no one would, or even could, disagree with, it’s possible that you are simply providing a summary, rather than making an argument.
• Is my thesis statement specific enough? Thesis statements that are too vague often do not have a strong argument. If your thesis contains words like “good” or “successful,” see if you could be more specific: why is something “good”; what specifically makes something “successful”?
• Does my thesis pass the “So what?” test? If a reader’s first response is likely to  be “So what?” then you need to clarify, to forge a relationship, or to connect to a larger issue.
• Does my essay support my thesis specifically and without wandering? If your thesis and the body of your essay do not seem to go together, one of them has to change. It’s okay to change your working thesis to reflect things you have figured out in the course of writing your paper. Remember, always reassess and revise your writing as necessary.
• Does my thesis pass the “how and why?” test? If a reader’s first response is “how?” or “why?” your thesis may be too open-ended and lack guidance for the reader. See what you can add to give the reader a better take on your position right from the beginning.

Suppose you are taking a course on contemporary communication, and the instructor hands out the following essay assignment: “Discuss the impact of social media on public awareness.” Looking back at your notes, you might start with this working thesis:

Social media impacts public awareness in both positive and negative ways.

You can use the questions above to help you revise this general statement into a stronger thesis.

• Do I answer the question? You can analyze this if you rephrase “discuss the impact” as “what is the impact?” This way, you can see that you’ve answered the question only very generally with the vague “positive and negative ways.”
• Have I taken a position that others might challenge or oppose? Not likely. Only people who maintain that social media has a solely positive or solely negative impact could disagree.
• Is my thesis statement specific enough? No. What are the positive effects? What are the negative effects?
• Does my thesis pass the “how and why?” test? No. Why are they positive? How are they positive? What are their causes? Why are they negative? How are they negative? What are their causes?
• Does my thesis pass the “So what?” test? No. Why should anyone care about the positive and/or negative impact of social media?

After thinking about your answers to these questions, you decide to focus on the one impact you feel strongly about and have strong evidence for:

Because not every voice on social media is reliable, people have become much more critical consumers of information, and thus, more informed voters.

This version is a much stronger thesis! It answers the question, takes a specific position that others can challenge, and it gives a sense of why it matters.

Let’s try another. Suppose your literature professor hands out the following assignment in a class on the American novel: Write an analysis of some aspect of Mark Twain’s novel Huckleberry Finn. “This will be easy,” you think. “I loved Huckleberry Finn!” You grab a pad of paper and write:

Mark Twain’s Huckleberry Finn is a great American novel.

You begin to analyze your thesis:

• Do I answer the question? No. The prompt asks you to analyze some aspect of the novel. Your working thesis is a statement of general appreciation for the entire novel.

Think about aspects of the novel that are important to its structure or meaning—for example, the role of storytelling, the contrasting scenes between the shore and the river, or the relationships between adults and children. Now you write:

In Huckleberry Finn, Mark Twain develops a contrast between life on the river and life on the shore.

• Do I answer the question? Yes!
• Have I taken a position that others might challenge or oppose? Not really. This contrast is well-known and accepted.
• Is my thesis statement specific enough? It’s getting there–you have highlighted an important aspect of the novel for investigation. However, it’s still not clear what your analysis will reveal.
• Does my thesis pass the “how and why?” test? Not yet. Compare scenes from the book and see what you discover. Free write, make lists, jot down Huck’s actions and reactions and anything else that seems interesting.
• Does my thesis pass the “So what?” test? What’s the point of this contrast? What does it signify?”

After examining the evidence and considering your own insights, you write:

Through its contrasting river and shore scenes, Twain’s Huckleberry Finn suggests that to find the true expression of American democratic ideals, one must leave “civilized” society and go back to nature.

This final thesis statement presents an interpretation of a literary work based on an analysis of its content. Of course, for the essay itself to be successful, you must now present evidence from the novel that will convince the reader of your interpretation.

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Anson, Chris M., and Robert A. Schwegler. 2010. The Longman Handbook for Writers and Readers , 6th ed. New York: Longman.

Lunsford, Andrea A. 2015. The St. Martin’s Handbook , 8th ed. Boston: Bedford/St Martin’s.

Ramage, John D., John C. Bean, and June Johnson. 2018. The Allyn & Bacon Guide to Writing , 8th ed. New York: Pearson.

Ruszkiewicz, John J., Christy Friend, Daniel Seward, and Maxine Hairston. 2010. The Scott, Foresman Handbook for Writers , 9th ed. Boston: Pearson Education.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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While Sandel argues that pursuing perfection through genetic engineering would decrease our sense of humility, he claims that the sense of solidarity we would lose is also important.

This thesis summarizes several points in Sandel’s argument, but it does not make a claim about how we should understand his argument. A reader who read Sandel’s argument would not also need to read an essay based on this descriptive thesis.  

Broad thesis (arguable, but difficult to support with evidence) 

Michael Sandel’s arguments about genetic engineering do not take into consideration all the relevant issues.

This is an arguable claim because it would be possible to argue against it by saying that Michael Sandel’s arguments do take all of the relevant issues into consideration. But the claim is too broad. Because the thesis does not specify which “issues” it is focused on—or why it matters if they are considered—readers won’t know what the rest of the essay will argue, and the writer won’t know what to focus on. If there is a particular issue that Sandel does not address, then a more specific version of the thesis would include that issue—hand an explanation of why it is important.  

Arguable thesis with analytical claim 

While Sandel argues persuasively that our instinct to “remake” (54) ourselves into something ever more perfect is a problem, his belief that we can always draw a line between what is medically necessary and what makes us simply “better than well” (51) is less convincing.

This is an arguable analytical claim. To argue for this claim, the essay writer will need to show how evidence from the article itself points to this interpretation. It’s also a reasonable scope for a thesis because it can be supported with evidence available in the text and is neither too broad nor too narrow.  

Arguable thesis with normative claim 

Given Sandel’s argument against genetic enhancement, we should not allow parents to decide on using Human Growth Hormone for their children.

This thesis tells us what we should do about a particular issue discussed in Sandel’s article, but it does not tell us how we should understand Sandel’s argument.  

Questions to ask about your thesis 

• Is the thesis truly arguable? Does it speak to a genuine dilemma in the source, or would most readers automatically agree with it?  
• Is the thesis too obvious? Again, would most or all readers agree with it without needing to see your argument?  
• Is the thesis complex enough to require a whole essay's worth of argument?  
• Is the thesis supportable with evidence from the text rather than with generalizations or outside research?  
• Would anyone want to read a paper in which this thesis was developed? That is, can you explain what this paper is adding to our understanding of a problem, question, or topic?
• picture_as_pdf Thesis

Developing a Thesis Statement

Many papers you write require developing a thesis statement. In this section you’ll learn what a thesis statement is and how to write one.

Keep in mind that not all papers require thesis statements . If in doubt, please consult your instructor for assistance.

What is a thesis statement?

A thesis statement . . .

• Makes an argumentative assertion about a topic; it states the conclusions that you have reached about your topic.
• Makes a promise to the reader about the scope, purpose, and direction of your paper.
• Is focused and specific enough to be “proven” within the boundaries of your paper.
• Is generally located near the end of the introduction ; sometimes, in a long paper, the thesis will be expressed in several sentences or in an entire paragraph.
• Identifies the relationships between the pieces of evidence that you are using to support your argument.

Not all papers require thesis statements! Ask your instructor if you’re in doubt whether you need one.

Identify a topic

Your topic is the subject about which you will write. Your assignment may suggest several ways of looking at a topic; or it may name a fairly general concept that you will explore or analyze in your paper.

Consider what your assignment asks you to do

Inform yourself about your topic, focus on one aspect of your topic, ask yourself whether your topic is worthy of your efforts, generate a topic from an assignment.

Below are some possible topics based on sample assignments.

Sample assignment 1

Analyze Spain’s neutrality in World War II.

Identified topic

Franco’s role in the diplomatic relationships between the Allies and the Axis

This topic avoids generalities such as “Spain” and “World War II,” addressing instead on Franco’s role (a specific aspect of “Spain”) and the diplomatic relations between the Allies and Axis (a specific aspect of World War II).

Sample assignment 2

Analyze one of Homer’s epic similes in the Iliad.

The relationship between the portrayal of warfare and the epic simile about Simoisius at 4.547-64.

This topic focuses on a single simile and relates it to a single aspect of the Iliad ( warfare being a major theme in that work).

Developing a Thesis Statement–Additional information

Your assignment may suggest several ways of looking at a topic, or it may name a fairly general concept that you will explore or analyze in your paper. You’ll want to read your assignment carefully, looking for key terms that you can use to focus your topic.

Sample assignment: Analyze Spain’s neutrality in World War II Key terms: analyze, Spain’s neutrality, World War II

After you’ve identified the key words in your topic, the next step is to read about them in several sources, or generate as much information as possible through an analysis of your topic. Obviously, the more material or knowledge you have, the more possibilities will be available for a strong argument. For the sample assignment above, you’ll want to look at books and articles on World War II in general, and Spain’s neutrality in particular.

As you consider your options, you must decide to focus on one aspect of your topic. This means that you cannot include everything you’ve learned about your topic, nor should you go off in several directions. If you end up covering too many different aspects of a topic, your paper will sprawl and be unconvincing in its argument, and it most likely will not fulfull the assignment requirements.

For the sample assignment above, both Spain’s neutrality and World War II are topics far too broad to explore in a paper. You may instead decide to focus on Franco’s role in the diplomatic relationships between the Allies and the Axis , which narrows down what aspects of Spain’s neutrality and World War II you want to discuss, as well as establishes a specific link between those two aspects.

Before you go too far, however, ask yourself whether your topic is worthy of your efforts. Try to avoid topics that already have too much written about them (i.e., “eating disorders and body image among adolescent women”) or that simply are not important (i.e. “why I like ice cream”). These topics may lead to a thesis that is either dry fact or a weird claim that cannot be supported. A good thesis falls somewhere between the two extremes. To arrive at this point, ask yourself what is new, interesting, contestable, or controversial about your topic.

As you work on your thesis, remember to keep the rest of your paper in mind at all times . Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Derive a main point from topic

Once you have a topic, you will have to decide what the main point of your paper will be. This point, the “controlling idea,” becomes the core of your argument (thesis statement) and it is the unifying idea to which you will relate all your sub-theses. You can then turn this “controlling idea” into a purpose statement about what you intend to do in your paper.

Look for patterns in your evidence

Compose a purpose statement.

Consult the examples below for suggestions on how to look for patterns in your evidence and construct a purpose statement.

• Franco first tried to negotiate with the Axis
• Franco turned to the Allies when he couldn’t get some concessions that he wanted from the Axis

Possible conclusion:

Spain’s neutrality in WWII occurred for an entirely personal reason: Franco’s desire to preserve his own (and Spain’s) power.

Purpose statement

This paper will analyze Franco’s diplomacy during World War II to see how it contributed to Spain’s neutrality.

• The simile compares Simoisius to a tree, which is a peaceful, natural image.
• The tree in the simile is chopped down to make wheels for a chariot, which is an object used in warfare.

At first, the simile seems to take the reader away from the world of warfare, but we end up back in that world by the end.

This paper will analyze the way the simile about Simoisius at 4.547-64 moves in and out of the world of warfare.

Derive purpose statement from topic

To find out what your “controlling idea” is, you have to examine and evaluate your evidence . As you consider your evidence, you may notice patterns emerging, data repeated in more than one source, or facts that favor one view more than another. These patterns or data may then lead you to some conclusions about your topic and suggest that you can successfully argue for one idea better than another.

For instance, you might find out that Franco first tried to negotiate with the Axis, but when he couldn’t get some concessions that he wanted from them, he turned to the Allies. As you read more about Franco’s decisions, you may conclude that Spain’s neutrality in WWII occurred for an entirely personal reason: his desire to preserve his own (and Spain’s) power. Based on this conclusion, you can then write a trial thesis statement to help you decide what material belongs in your paper.

Sometimes you won’t be able to find a focus or identify your “spin” or specific argument immediately. Like some writers, you might begin with a purpose statement just to get yourself going. A purpose statement is one or more sentences that announce your topic and indicate the structure of the paper but do not state the conclusions you have drawn . Thus, you might begin with something like this:

• This paper will look at modern language to see if it reflects male dominance or female oppression.
• I plan to analyze anger and derision in offensive language to see if they represent a challenge of society’s authority.

At some point, you can turn a purpose statement into a thesis statement. As you think and write about your topic, you can restrict, clarify, and refine your argument, crafting your thesis statement to reflect your thinking.

As you work on your thesis, remember to keep the rest of your paper in mind at all times. Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Compose a draft thesis statement

If you are writing a paper that will have an argumentative thesis and are having trouble getting started, the techniques in the table below may help you develop a temporary or “working” thesis statement.

Begin with a purpose statement that you will later turn into a thesis statement.

Assignment: Discuss the history of the Reform Party and explain its influence on the 1990 presidential and Congressional election.

Purpose Statement: This paper briefly sketches the history of the grassroots, conservative, Perot-led Reform Party and analyzes how it influenced the economic and social ideologies of the two mainstream parties.

Question-to-Assertion

If your assignment asks a specific question(s), turn the question(s) into an assertion and give reasons why it is true or reasons for your opinion.

Assignment : What do Aylmer and Rappaccini have to be proud of? Why aren’t they satisfied with these things? How does pride, as demonstrated in “The Birthmark” and “Rappaccini’s Daughter,” lead to unexpected problems?

Beginning thesis statement: Alymer and Rappaccinni are proud of their great knowledge; however, they are also very greedy and are driven to use their knowledge to alter some aspect of nature as a test of their ability. Evil results when they try to “play God.”

Write a sentence that summarizes the main idea of the essay you plan to write.

Main idea: The reason some toys succeed in the market is that they appeal to the consumers’ sense of the ridiculous and their basic desire to laugh at themselves.

Make a list of the ideas that you want to include; consider the ideas and try to group them.

• nature = peaceful
• war matériel = violent (competes with 1?)
• need for time and space to mourn the dead
• war is inescapable (competes with 3?)

Use a formula to arrive at a working thesis statement (you will revise this later).

• although most readers of _______ have argued that _______, closer examination shows that _______.
• _______ uses _______ and _____ to prove that ________.
• phenomenon x is a result of the combination of __________, __________, and _________.

What to keep in mind as you draft an initial thesis statement

Beginning statements obtained through the methods illustrated above can serve as a framework for planning or drafting your paper, but remember they’re not yet the specific, argumentative thesis you want for the final version of your paper. In fact, in its first stages, a thesis statement usually is ill-formed or rough and serves only as a planning tool.

As you write, you may discover evidence that does not fit your temporary or “working” thesis. Or you may reach deeper insights about your topic as you do more research, and you will find that your thesis statement has to be more complicated to match the evidence that you want to use.

You must be willing to reject or omit some evidence in order to keep your paper cohesive and your reader focused. Or you may have to revise your thesis to match the evidence and insights that you want to discuss. Read your draft carefully, noting the conclusions you have drawn and the major ideas which support or prove those conclusions. These will be the elements of your final thesis statement.

Sometimes you will not be able to identify these elements in your early drafts, but as you consider how your argument is developing and how your evidence supports your main idea, ask yourself, “ What is the main point that I want to prove/discuss? ” and “ How will I convince the reader that this is true? ” When you can answer these questions, then you can begin to refine the thesis statement.

Refine and polish the thesis statement

To get to your final thesis, you’ll need to refine your draft thesis so that it’s specific and arguable.

• Ask if your draft thesis addresses the assignment
• Question each part of your draft thesis
• Clarify vague phrases and assertions
• Investigate alternatives to your draft thesis

Consult the example below for suggestions on how to refine your draft thesis statement.

Sample Assignment

Choose an activity and define it as a symbol of American culture. Your essay should cause the reader to think critically about the society which produces and enjoys that activity.

• Ask The phenomenon of drive-in facilities is an interesting symbol of american culture, and these facilities demonstrate significant characteristics of our society.This statement does not fulfill the assignment because it does not require the reader to think critically about society.

Drive-ins are an interesting symbol of American culture because they represent Americans’ significant creativity and business ingenuity.

Among the types of drive-in facilities familiar during the twentieth century, drive-in movie theaters best represent American creativity, not merely because they were the forerunner of later drive-ins and drive-throughs, but because of their impact on our culture: they changed our relationship to the automobile, changed the way people experienced movies, and changed movie-going into a family activity.

While drive-in facilities such as those at fast-food establishments, banks, pharmacies, and dry cleaners symbolize America’s economic ingenuity, they also have affected our personal standards.

While drive-in facilities such as those at fast- food restaurants, banks, pharmacies, and dry cleaners symbolize (1) Americans’ business ingenuity, they also have contributed (2) to an increasing homogenization of our culture, (3) a willingness to depersonalize relationships with others, and (4) a tendency to sacrifice quality for convenience.

This statement is now specific and fulfills all parts of the assignment. This version, like any good thesis, is not self-evident; its points, 1-4, will have to be proven with evidence in the body of the paper. The numbers in this statement indicate the order in which the points will be presented. Depending on the length of the paper, there could be one paragraph for each numbered item or there could be blocks of paragraph for even pages for each one.

Complete the final thesis statement

The bottom line.

As you move through the process of crafting a thesis, you’ll need to remember four things:

• Context matters! Think about your course materials and lectures. Try to relate your thesis to the ideas your instructor is discussing.
• As you go through the process described in this section, always keep your assignment in mind . You will be more successful when your thesis (and paper) responds to the assignment than if it argues a semi-related idea.
• Your thesis statement should be precise, focused, and contestable ; it should predict the sub-theses or blocks of information that you will use to prove your argument.
• Make sure that you keep the rest of your paper in mind at all times. Change your thesis as your paper evolves, because you do not want your thesis to promise more than your paper actually delivers.

In the beginning, the thesis statement was a tool to help you sharpen your focus, limit material and establish the paper’s purpose. When your paper is finished, however, the thesis statement becomes a tool for your reader. It tells the reader what you have learned about your topic and what evidence led you to your conclusion. It keeps the reader on track–well able to understand and appreciate your argument.

Writing Process and Structure

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Getting Started with Your Paper

Interpreting Writing Assignments from Your Courses

Generating Ideas for

Creating an Argument

Thesis vs. Purpose Statements

Architecture of Arguments

Working with Sources

Quoting and Paraphrasing Sources

Using Literary Quotations

Citing Sources in Your Paper

Drafting Your Paper

Generating Ideas for Your Paper

Introductions

Paragraphing

Developing Strategic Transitions

Conclusions

Revising Your Paper

Peer Reviews

Reverse Outlines

Revising an Argumentative Paper

Revision Strategies for Longer Projects

Finishing Your Paper

Twelve Common Errors: An Editing Checklist

How to Proofread your Paper

Writing Collaboratively

Collaborative and Group Writing

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• What Is a Thesis? | Ultimate Guide & Examples

What Is a Thesis? | Ultimate Guide & Examples

Published on September 14, 2022 by Tegan George . Revised on November 21, 2023.

A thesis is a type of research paper based on your original research. It is usually submitted as the final step of a master’s program or a capstone to a bachelor’s degree.

Writing a thesis can be a daunting experience. Other than a dissertation , it is one of the longest pieces of writing students typically complete. It relies on your ability to conduct research from start to finish: choosing a relevant topic , crafting a proposal , designing your research , collecting data , developing a robust analysis, drawing strong conclusions , and writing concisely .

Thesis template

You can also download our full thesis template in the format of your choice below. Our template includes a ready-made table of contents , as well as guidance for what each chapter should include. It’s easy to make it your own, and can help you get started.

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Table of contents

Thesis vs. thesis statement, how to structure a thesis, acknowledgements or preface, list of figures and tables, list of abbreviations, introduction, literature review, methodology, reference list, proofreading and editing, defending your thesis, other interesting articles, frequently asked questions about theses.

You may have heard the word thesis as a standalone term or as a component of academic writing called a thesis statement . Keep in mind that these are two very different things.

• A thesis statement is a very common component of an essay, particularly in the humanities. It usually comprises 1 or 2 sentences in the introduction of your essay , and should clearly and concisely summarize the central points of your academic essay .
• A thesis is a long-form piece of academic writing, often taking more than a full semester to complete. It is generally a degree requirement for Master’s programs, and is also sometimes required to complete a bachelor’s degree in liberal arts colleges.
• In the US, a dissertation is generally written as a final step toward obtaining a PhD.
• In other countries (particularly the UK), a dissertation is generally written at the bachelor’s or master’s level.

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The final structure of your thesis depends on a variety of components, such as:

• Your discipline
• Your theoretical approach

Humanities theses are often structured more like a longer-form essay . Just like in an essay, you build an argument to support a central thesis.

In both hard and social sciences, theses typically include an introduction , literature review , methodology section ,  results section , discussion section , and conclusion section . These are each presented in their own dedicated section or chapter. In some cases, you might want to add an appendix .

Thesis examples

We’ve compiled a short list of thesis examples to help you get started.

• Example thesis #1:   “Abolition, Africans, and Abstraction: the Influence of the ‘Noble Savage’ on British and French Antislavery Thought, 1787-1807” by Suchait Kahlon.
• Example thesis #2: “’A Starving Man Helping Another Starving Man’: UNRRA, India, and the Genesis of Global Relief, 1943-1947″ by Julian Saint Reiman.

The very first page of your thesis contains all necessary identifying information, including:

• Your full title
• Your full name
• Your department
• Your institution and degree program
• Your submission date.

Sometimes the title page also includes your student ID, the name of your supervisor, or the university’s logo. Check out your university’s guidelines if you’re not sure.

Read more about title pages

The acknowledgements section is usually optional. Its main point is to allow you to thank everyone who helped you in your thesis journey, such as supervisors, friends, or family. You can also choose to write a preface , but it’s typically one or the other, not both.

Read more about acknowledgements Read more about prefaces

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An abstract is a short summary of your thesis. Usually a maximum of 300 words long, it’s should include brief descriptions of your research objectives , methods, results, and conclusions. Though it may seem short, it introduces your work to your audience, serving as a first impression of your thesis.

Read more about abstracts

A table of contents lists all of your sections, plus their corresponding page numbers and subheadings if you have them. This helps your reader seamlessly navigate your document.

Your table of contents should include all the major parts of your thesis. In particular, don’t forget the the appendices. If you used heading styles, it’s easy to generate an automatic table Microsoft Word.

Read more about tables of contents

While not mandatory, if you used a lot of tables and/or figures, it’s nice to include a list of them to help guide your reader. It’s also easy to generate one of these in Word: just use the “Insert Caption” feature.

Read more about lists of figures and tables

If you have used a lot of industry- or field-specific abbreviations in your thesis, you should include them in an alphabetized list of abbreviations . This way, your readers can easily look up any meanings they aren’t familiar with.

Read more about lists of abbreviations

Relatedly, if you find yourself using a lot of very specialized or field-specific terms that may not be familiar to your reader, consider including a glossary . Alphabetize the terms you want to include with a brief definition.

Read more about glossaries

An introduction sets up the topic, purpose, and relevance of your thesis, as well as expectations for your reader. This should:

• Ground your research topic , sharing any background information your reader may need
• Define the scope of your work
• Introduce any existing research on your topic, situating your work within a broader problem or debate
• State your research question(s)
• Outline (briefly) how the remainder of your work will proceed

In other words, your introduction should clearly and concisely show your reader the “what, why, and how” of your research.

Read more about introductions

A literature review helps you gain a robust understanding of any extant academic work on your topic, encompassing:

• Selecting relevant sources
• Determining the credibility of your sources
• Critically evaluating each of your sources
• Drawing connections between sources, including any themes, patterns, conflicts, or gaps

A literature review is not merely a summary of existing work. Rather, your literature review should ultimately lead to a clear justification for your own research, perhaps via:

• Addressing a gap in the literature
• Building on existing knowledge to draw new conclusions
• Exploring a new theoretical or methodological approach
• Introducing a new solution to an unresolved problem
• Definitively advocating for one side of a theoretical debate

Read more about literature reviews

Theoretical framework

Your literature review can often form the basis for your theoretical framework, but these are not the same thing. A theoretical framework defines and analyzes the concepts and theories that your research hinges on.

Read more about theoretical frameworks

Your methodology chapter shows your reader how you conducted your research. It should be written clearly and methodically, easily allowing your reader to critically assess the credibility of your argument. Furthermore, your methods section should convince your reader that your method was the best way to answer your research question.

A methodology section should generally include:

• Your overall approach ( quantitative vs. qualitative )
• Your research methods (e.g., a longitudinal study )
• Your data collection methods (e.g., interviews or a controlled experiment
• Any tools or materials you used (e.g., computer software)
• The data analysis methods you chose (e.g., statistical analysis , discourse analysis )
• A strong, but not defensive justification of your methods

Read more about methodology sections

Your results section should highlight what your methodology discovered. These two sections work in tandem, but shouldn’t repeat each other. While your results section can include hypotheses or themes, don’t include any speculation or new arguments here.

Your results section should:

• State each (relevant) result with any (relevant) descriptive statistics (e.g., mean , standard deviation ) and inferential statistics (e.g., test statistics , p values )
• Explain how each result relates to the research question
• Determine whether the hypothesis was supported

Additional data (like raw numbers or interview transcripts ) can be included as an appendix . You can include tables and figures, but only if they help the reader better understand your results.

Read more about results sections

Your discussion section is where you can interpret your results in detail. Did they meet your expectations? How well do they fit within the framework that you built? You can refer back to any relevant source material to situate your results within your field, but leave most of that analysis in your literature review.

For any unexpected results, offer explanations or alternative interpretations of your data.

Read more about discussion sections

Your thesis conclusion should concisely answer your main research question. It should leave your reader with an ultra-clear understanding of your central argument, and emphasize what your research specifically has contributed to your field.

Why does your research matter? What recommendations for future research do you have? Lastly, wrap up your work with any concluding remarks.

Read more about conclusions

In order to avoid plagiarism , don’t forget to include a full reference list at the end of your thesis, citing the sources that you used. Choose one citation style and follow it consistently throughout your thesis, taking note of the formatting requirements of each style.

Which style you choose is often set by your department or your field, but common styles include MLA , Chicago , and APA.

Create APA citations Create MLA citations

In order to stay clear and concise, your thesis should include the most essential information needed to answer your research question. However, chances are you have many contributing documents, like interview transcripts or survey questions . These can be added as appendices , to save space in the main body.

Read more about appendices

Once you’re done writing, the next part of your editing process begins. Leave plenty of time for proofreading and editing prior to submission. Nothing looks worse than grammar mistakes or sloppy spelling errors!

Consider using a professional thesis editing service or grammar checker to make sure your final project is perfect.

Once you’ve submitted your final product, it’s common practice to have a thesis defense, an oral component of your finished work. This is scheduled by your advisor or committee, and usually entails a presentation and Q&A session.

After your defense , your committee will meet to determine if you deserve any departmental honors or accolades. However, keep in mind that defenses are usually just a formality. If there are any serious issues with your work, these should be resolved with your advisor way before a defense.

If you want to know more about AI for academic writing, AI tools, or research bias, make sure to check out some of our other articles with explanations and examples or go directly to our tools!

Research bias

• Survivorship bias
• Self-serving bias
• Availability heuristic
• Halo effect
• Hindsight bias
• Deep learning
• Generative AI
• Machine learning
• Reinforcement learning
• Supervised vs. unsupervised learning

 (AI) Tools

• Grammar Checker
• Paraphrasing Tool
• Text Summarizer
• AI Detector
• Plagiarism Checker
• Citation Generator

The conclusion of your thesis or dissertation shouldn’t take up more than 5–7% of your overall word count.

If you only used a few abbreviations in your thesis or dissertation , you don’t necessarily need to include a list of abbreviations .

If your abbreviations are numerous, or if you think they won’t be known to your audience, it’s never a bad idea to add one. They can also improve readability, minimizing confusion about abbreviations unfamiliar to your reader.

When you mention different chapters within your text, it’s considered best to use Roman numerals for most citation styles. However, the most important thing here is to remain consistent whenever using numbers in your dissertation .

A thesis or dissertation outline is one of the most critical first steps in your writing process. It helps you to lay out and organize your ideas and can provide you with a roadmap for deciding what kind of research you’d like to undertake.

Generally, an outline contains information on the different sections included in your thesis or dissertation , such as:

• Your anticipated title
• Your abstract
• Your chapters (sometimes subdivided into further topics like literature review , research methods , avenues for future research, etc.)

A thesis is typically written by students finishing up a bachelor’s or Master’s degree. Some educational institutions, particularly in the liberal arts, have mandatory theses, but they are often not mandatory to graduate from bachelor’s degrees. It is more common for a thesis to be a graduation requirement from a Master’s degree.

Even if not mandatory, you may want to consider writing a thesis if you:

• Plan to attend graduate school soon
• Have a particular topic you’d like to study more in-depth
• Are considering a career in research
• Would like a capstone experience to tie up your academic experience

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Writing a Thesis Statement — Definition, Types, and Examples

What is a thesis statement?

A thesis statement is a single sentence that identifies the topic and purpose of a scholarly research paper or academic writing. A thesis statement directly or indirectly presents the main points of the paper. Information presented in the essay should tie directly back to the thesis.

Overall, a good thesis statement accomplishes the following:

Identifies the purpose of the essay

Expresses the writer's position/opinion

Lists the main supports (optional)

Briefly summarizes the writer's conclusion(s)

Establish if the essay is explanatory, argumentative, or analytical

People often confuse thesis statements with topic sentences , which start each body paragraph. Typically, the thesis statement is the final sentence in the introductory paragraph and acts as a “road map” for the rest of the paper.

Types of thesis statements

The three main types of thesis statements are explanatory, argumentative, and analytical.

Explanatory thesis statements are used in expository essays that focus solely on informing the reader. Papers with this type of thesis do not contain the writer's opinion, nor do they try to persuade the reader.

The three main branches of science taught in public schools include biology, chemistry, and physics.

Argumentative thesis statements identify the writer's position or point of view on a given topic. Argumentative essays persuade the reader to agree with the writer's stance. If the reader cannot agree or disagree with the claim in the thesis, then it is not argumentative.

Public schools should place more emphasis on the arts because they encourage creativity, help improve academic development, and provide a beneficial emotional outlet.

Analytical thesis statements are used in papers that analyze how or why something does what it does. These thesis statements identify what the writer is analyzing, the parts of the analysis, and the order of those parts.

An analysis of course requirements in public schools suggests access to more electives can increase graduation rates.

How to write a thesis statement

When writing a thesis, the following guidelines apply:

Step 1: Determine the type of paper (explanatory, argumentative, or analytical).

Step 2: Identify the topic, position/claim, and supports of the essay.

Step 3: Determine if the supports should be included within the thesis. Although they are considered optional, they might be required depending on the audience and purpose of the essay.

Step 4: Compose a sentence that includes the topic, position, and supports (optional). While a thesis statement can be more than one sentence, it should not exceed two.

Step 5: Place the thesis statement at the end of the introductory paragraph(s). Placing it at the end of the introduction and before the supports allows the reader to focus on the paper’s main purpose.

Thesis statement examples

The following examples highlight each type of thesis statement.

Topic: Alternative Energy Sources

Explanatory Thesis: Alternative energy sources that can supplement the use of fossil fuels include solar, wind, and geothermal.

Argumentative Thesis: To combat reliance on foreign sources of fossil fuels, the United States would benefit from focusing on alternative energy options.

Analytical Thesis: Analysis suggests that replacing fossil fuels with alternative energy sources could negatively impact the economy.

Topic: Social Media

Explanatory Thesis: Three of the first platforms that influenced the world of social media include Facebook, Twitter, and Instagram.

Argumentative Thesis: Social media negatively influences society as it increases opportunities for cyberbullying, limits face-to-face interactions, and creates unrealistic expectations.

Analytical Thesis: An analysis of the use of social media suggests itis irrevocably harming the development of teenagers.

Topic: Standardized Testing

Explanatory Thesis: Standardized tests such as the ACT and SAT play a limited role in influencing college acceptance.

Argumentative Thesis: Standardized testing should not be required because it increases anxiety, does not measure progress, and cannot predict future success.

Analytical Thesis: Analysis suggests that standardized testing in elementary and high school negatively impacts students' academic success.

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Developing Strong Thesis Statements

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These OWL resources will help you develop and refine the arguments in your writing.

The thesis statement or main claim must be debatable

An argumentative or persuasive piece of writing must begin with a debatable thesis or claim. In other words, the thesis must be something that people could reasonably have differing opinions on. If your thesis is something that is generally agreed upon or accepted as fact then there is no reason to try to persuade people.

Example of a non-debatable thesis statement:

This thesis statement is not debatable. First, the word pollution implies that something is bad or negative in some way. Furthermore, all studies agree that pollution is a problem; they simply disagree on the impact it will have or the scope of the problem. No one could reasonably argue that pollution is unambiguously good.

Example of a debatable thesis statement:

This is an example of a debatable thesis because reasonable people could disagree with it. Some people might think that this is how we should spend the nation's money. Others might feel that we should be spending more money on education. Still others could argue that corporations, not the government, should be paying to limit pollution.

Another example of a debatable thesis statement:

In this example there is also room for disagreement between rational individuals. Some citizens might think focusing on recycling programs rather than private automobiles is the most effective strategy.

The thesis needs to be narrow

Although the scope of your paper might seem overwhelming at the start, generally the narrower the thesis the more effective your argument will be. Your thesis or claim must be supported by evidence. The broader your claim is, the more evidence you will need to convince readers that your position is right.

Example of a thesis that is too broad:

There are several reasons this statement is too broad to argue. First, what is included in the category "drugs"? Is the author talking about illegal drug use, recreational drug use (which might include alcohol and cigarettes), or all uses of medication in general? Second, in what ways are drugs detrimental? Is drug use causing deaths (and is the author equating deaths from overdoses and deaths from drug related violence)? Is drug use changing the moral climate or causing the economy to decline? Finally, what does the author mean by "society"? Is the author referring only to America or to the global population? Does the author make any distinction between the effects on children and adults? There are just too many questions that the claim leaves open. The author could not cover all of the topics listed above, yet the generality of the claim leaves all of these possibilities open to debate.

Example of a narrow or focused thesis:

In this example the topic of drugs has been narrowed down to illegal drugs and the detriment has been narrowed down to gang violence. This is a much more manageable topic.

We could narrow each debatable thesis from the previous examples in the following way:

Narrowed debatable thesis 1:

This thesis narrows the scope of the argument by specifying not just the amount of money used but also how the money could actually help to control pollution.

Narrowed debatable thesis 2:

This thesis narrows the scope of the argument by specifying not just what the focus of a national anti-pollution campaign should be but also why this is the appropriate focus.

Qualifiers such as " typically ," " generally ," " usually ," or " on average " also help to limit the scope of your claim by allowing for the almost inevitable exception to the rule.

Types of claims

Claims typically fall into one of four categories. Thinking about how you want to approach your topic, or, in other words, what type of claim you want to make, is one way to focus your thesis on one particular aspect of your broader topic.

Claims of fact or definition: These claims argue about what the definition of something is or whether something is a settled fact. Example:

Claims of cause and effect: These claims argue that one person, thing, or event caused another thing or event to occur. Example:

Claims about value: These are claims made of what something is worth, whether we value it or not, how we would rate or categorize something. Example:

Claims about solutions or policies: These are claims that argue for or against a certain solution or policy approach to a problem. Example:

Which type of claim is right for your argument? Which type of thesis or claim you use for your argument will depend on your position and knowledge of the topic, your audience, and the context of your paper. You might want to think about where you imagine your audience to be on this topic and pinpoint where you think the biggest difference in viewpoints might be. Even if you start with one type of claim you probably will be using several within the paper. Regardless of the type of claim you choose to utilize it is key to identify the controversy or debate you are addressing and to define your position early on in the paper.

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How to Write a Strong Thesis Statement: 4 Steps + Examples

What’s Covered:

What is the purpose of a thesis statement, writing a good thesis statement: 4 steps, common pitfalls to avoid, where to get your essay edited for free.

When you set out to write an essay, there has to be some kind of point to it, right? Otherwise, your essay would just be a big jumble of word salad that makes absolutely no sense. An essay needs a central point that ties into everything else. That main point is called a thesis statement, and it’s the core of any essay or research paper.

You may hear about Master degree candidates writing a thesis, and that is an entire paper–not to be confused with the thesis statement, which is typically one sentence that contains your paper’s focus. 

Read on to learn more about thesis statements and how to write them. We’ve also included some solid examples for you to reference.

Typically the last sentence of your introductory paragraph, the thesis statement serves as the roadmap for your essay. When your reader gets to the thesis statement, they should have a clear outline of your main point, as well as the information you’ll be presenting in order to either prove or support your point. 

The thesis statement should not be confused for a topic sentence , which is the first sentence of every paragraph in your essay. If you need help writing topic sentences, numerous resources are available. Topic sentences should go along with your thesis statement, though.

Since the thesis statement is the most important sentence of your entire essay or paper, it’s imperative that you get this part right. Otherwise, your paper will not have a good flow and will seem disjointed. That’s why it’s vital not to rush through developing one. It’s a methodical process with steps that you need to follow in order to create the best thesis statement possible.

Step 1: Decide what kind of paper you’re writing

When you’re assigned an essay, there are several different types you may get. Argumentative essays are designed to get the reader to agree with you on a topic. Informative or expository essays present information to the reader. Analytical essays offer up a point and then expand on it by analyzing relevant information. Thesis statements can look and sound different based on the type of paper you’re writing. For example:

• Argumentative: The United States needs a viable third political party to decrease bipartisanship, increase options, and help reduce corruption in government.
• Informative: The Libertarian party has thrown off elections before by gaining enough support in states to get on the ballot and by taking away crucial votes from candidates.
• Analytical: An analysis of past presidential elections shows that while third party votes may have been the minority, they did affect the outcome of the elections in 2020, 2016, and beyond.

Step 2: Figure out what point you want to make

Once you know what type of paper you’re writing, you then need to figure out the point you want to make with your thesis statement, and subsequently, your paper. In other words, you need to decide to answer a question about something, such as:

• What impact did reality TV have on American society?
• How has the musical Hamilton affected perception of American history?
• Why do I want to major in [chosen major here]?

If you have an argumentative essay, then you will be writing about an opinion. To make it easier, you may want to choose an opinion that you feel passionate about so that you’re writing about something that interests you. For example, if you have an interest in preserving the environment, you may want to choose a topic that relates to that. 

If you’re writing your college essay and they ask why you want to attend that school, you may want to have a main point and back it up with information, something along the lines of:

“Attending Harvard University would benefit me both academically and professionally, as it would give me a strong knowledge base upon which to build my career, develop my network, and hopefully give me an advantage in my chosen field.”

Step 3: Determine what information you’ll use to back up your point

Once you have the point you want to make, you need to figure out how you plan to back it up throughout the rest of your essay. Without this information, it will be hard to either prove or argue the main point of your thesis statement. If you decide to write about the Hamilton example, you may decide to address any falsehoods that the writer put into the musical, such as:

“The musical Hamilton, while accurate in many ways, leaves out key parts of American history, presents a nationalist view of founding fathers, and downplays the racism of the times.”

Once you’ve written your initial working thesis statement, you’ll then need to get information to back that up. For example, the musical completely leaves out Benjamin Franklin, portrays the founding fathers in a nationalist way that is too complimentary, and shows Hamilton as a staunch abolitionist despite the fact that his family likely did own slaves. 

Step 4: Revise and refine your thesis statement before you start writing

Read through your thesis statement several times before you begin to compose your full essay. You need to make sure the statement is ironclad, since it is the foundation of the entire paper. Edit it or have a peer review it for you to make sure everything makes sense and that you feel like you can truly write a paper on the topic. Once you’ve done that, you can then begin writing your paper.

When writing a thesis statement, there are some common pitfalls you should avoid so that your paper can be as solid as possible. Make sure you always edit the thesis statement before you do anything else. You also want to ensure that the thesis statement is clear and concise. Don’t make your reader hunt for your point. Finally, put your thesis statement at the end of the first paragraph and have your introduction flow toward that statement. Your reader will expect to find your statement in its traditional spot.

If you’re having trouble getting started, or need some guidance on your essay, there are tools available that can help you. CollegeVine offers a free peer essay review tool where one of your peers can read through your essay and provide you with valuable feedback. Getting essay feedback from a peer can help you wow your instructor or college admissions officer with an impactful essay that effectively illustrates your point.

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What is a Thesis Statement and How to Write It (with Examples) 

A thesis statement is basically a sentence or two that summarizes the central theme of your research. In research papers and essays, it is typically placed at the end of the introduction section, which provides broad knowledge about the investigation/study. To put it simply, the thesis statement can be thought of as the main message of any film, which is communicated through the plot and characters. Similar to how a director has a vision, the author(s) in this case has an opinion on the subject that they wish to portray in their research report.  

In this article, we will provide a thorough overview on thesis statements, addressing the most frequently asked questions, including how authors arrive at and create a thesis statement that effectively summarizes your research. To make it simpler, we’ve broken this information up into subheadings that focus on different aspects of writing the thesis statement.

Table of Contents

• What is a thesis statement? 
• What should a thesis statement include (with examples)? 
• How to write a thesis statement in four steps? 
• How to generate a thesis statement? 
• Types of thesis statements? 
• Key takeaways 
• Frequently asked questions (FAQs)

What is a thesis statement?

A thesis statement, in essence, is a sentence that summarizes the main concept the author(s) wishes to investigate in their research. A thesis statement is often a “question/hypothesis” the author(s) wants to address, using a certain methodology or approach to provide sufficient evidence to support their claims and findings. However, it isn’t necessarily the topic sentence (first sentence) in a research paper introduction, which could be a general statement.  

Returning to our movie analogy, a thesis statement is comparable to the particular viewpoint a director wants to convey to his audience. A thesis statement tells the reader the fundamental idea of the study and the possible course it will take to support that idea. A well-structured thesis statement enables the reader to understand the study and the intended approach, so both its placement and clarity matter here. An appropriately placed thesis statement, usually at the end of an introductory paragraph, ensures the reader will not lose interest. A thesis statement plays another crucial role, it summarizes the main idea behind the study so that readers will understand the question the author is trying to answer. It gives the reader some background information and a sense of the topic’s wider context while also hinting at the work or experimental approach that will come next. To summarize, thesis statements are generally that one key phrase you skim over to rapidly understand the thesis of a study.  

What should a thesis statement include (with examples)?

Now that we have understood the concept, the next step is learning how to write a good thesis statement. A strong thesis statement should let the reader understand how well-versed you are, as an author, in the subject matter of the study and your position on the topic at hand. The elements listed below should be considered while crafting a statement for your thesis or paper to increase its credibility and impact.  

• The author should take a position that a sizable portion of the readership may disagree with. The subject should not be a well-known, well-defined issue with just unanimity of view. This form of thesis statement is typically viewed as weak because it implies that there is nothing substantial to investigate and demonstrate. To pique readers’ interest, the thesis statement should be debatable in some way, and the findings should advance the body of knowledge. 
• A review of pertinent literature on the subject is a must in order for the author to establish an informed opinion about the questions they wish to pose and the stance they would want to take during their study, this is the basis to develop a strong thesis statement. The authors of the study should be able to support their statements with relevant research, strengthening their stance by citing literature.  
• The thesis statement should highlight just one main idea, with each claim made by the authors in the paper demonstrating the accuracy of the statement. Avoid multiple themes running throughout the article as this could confuse readers and undermine the author’s perspective on the subject. It can also be a sign of the authors’ ambiguity. 
• The main objective of a thesis statement is to briefly describe the study’s conclusion while posing a specific inquiry that clarifies the author’s stance or perspective on the subject. Therefore, it is crucial to clearly establish your viewpoint in the statement. 

Based on the considerations above, you may wonder how to write a thesis statement for different types of academic essays. Expository and argumentative essays, the most common types of essays, both call for a statement that takes a stand on the issue and uses powerful language. These kinds of thesis statements need to be precise and contain enough background material to give a comprehensive picture of the subject. However, in persuasive essays, which typically integrate an emotive perspective and personal experiences, the opinions are presented as facts that need supporting evidence. The sole difference between argumentative and expository essays and persuasive essays is that the former require the use of strong viewpoints, while the latter does not. Last but not least, the thesis statement for a compare-and-contrast essay addresses two themes rather than just one. Authors can choose to concentrate more on examining similarities or differences depending on the nature of the study; the only caveat is that both topics must receive equal attention to prevent biases. 

How to write a thesis statement in four steps?

Coming up with a research question might be challenging in situations when the research topic is not decided or it’s a new field of study. You may want to delve deeper into a widely researched subject, continue with your current research, or pursue a topic you are passionate about. If you don’t have a thesis statement yet, here are four easy stages to get you started. 

• Start with a working thesis statement : Writing the statement is not so straightforward; you won’t magically write the final thesis statement at once. It is preferable to choose an initial working thesis after reviewing relevant literature on the topic. Once you have chosen a subject that interests you, attempt to think of a specific query that has not been raised or that would be fascinating to contribute to the body of literature. For example, if you are writing an article or paper about ChatGPT, you could want to look into how ChatGPT affects learning among students. You can even get more specific, like, “How does ChatGPT harm learning and education?” 
• Outline your answer (your positioning on the subject): Based on your review of past research, you would form an opinion about the subject—in this example, the effect of ChatGPT on students’ learning—and then you write down your tentative answer to this question. If your initial response is that ChatGPT use has a detrimental impact on education and learning, this would serve as the foundation for your research. Your study would include research and findings to support this assertion and persuade the reader to accept your hypothesis. 
• Provide evidence to support your claim : The goal of your study should be to back your hypothesis with enough evidence, relevant facts and literature, to support your claim and explain why you selected that particular response (in this case, why you believe that ChatGPT has a negative impact on learning and education). The focus should be on discussing both the benefits and drawbacks of using ChatGPT and demonstrating why the disadvantages outweigh the benefits. An argumentative thesis statement example on the same topic would be that, despite ChatGPT’s enormous potential as a virtual learning tool for students, it has a detrimental effect on their creativity and critical thinking skills and encourages problematic behaviors like cheating and plagiarism.  
• Polish your thesis statement: After outlining your initial statement, improve it by keeping these three elements in mind.  
• Does it make it clear what position you hold on the subject? 
• Does it effectively connect the various facets of the study topic together?  
• Does it summarize the key points of your narrative?  

The thesis statement will also gain from your comments on the approach you will employ to validate your claim. For example, the aforementioned thesis statement may be clarified as “Although ChatGPT has enormous potential to serve as a virtual tutor for students and assistant to instructors, its disadvantages, such as plagiarism and the creation of false information, currently outweigh the advantages.” This particular illustration offers a thoughtful discussion of the subject, enabling the author to make their case more persuasively. 

How to generate a thesis statement?

No matter how complicated, any thesis or paper may be explained in one or two sentences. Just identify the question your research aims to answer, then write a statement based on your anticipated response. An effective thesis statement will have the following characteristics: 

• It should have a take on the subject (which is contentious/adds to existing knowledge) 
• It should express a main topic (other themes should only be included if they connect to the main theme) 
• It should declare your conclusion about the issue 
• It should be based on an objective, broad outlook on the subject. 

To understand how to write a thesis statement from scratch, let’s use an example where you may want to learn about how mental and physical health are related.  

Since the subject is still broad, you should first conduct a brainstorming session to acquire further thoughts. After reading literature, you determine that you are curious to learn how yoga enhances mental health. To develop a compelling thesis statement, you must further narrow this topic by posing precise questions that you can answer through your research. You can ask, “How does yoga affect mental health. What is the possible mean”? This topic makes it plain to the reader what the study is about but it is necessary for you to adopt a position on the issue. Upon further deliberation, the premise can be rephrased as “Yoga, a low impact form of exercise, positively impacts people’s mental health by lowering stress hormones and elevating healthy brain chemicals.” This clearly states your position on the topic. Finally, you may further develop this into a clear, precise thesis statement that asks, “Does practicing yoga induce feel-good hormones and lower the stress hormone, cortisol, that positively affects people’s mental health?” to turn it into a study.  

Types of thesis statements?

The three primary categories of thesis statements are analytical, expository, and argumentative. You choose one over the other depending on the subject matter of your research or essay. In argumentative thesis statements, the author takes a clear stand and strives to persuade the reader of their claims, for example, “Animal agriculture is the biggest driver of climate change.” It is specific, concise, and also contentious. On the other hand, the purpose of an expository thesis statement is to interpret, assess, and discuss various facets of a subject. Here you shortlist the key points of your interpretation, and state the conclusion based on the interpretation you drew from the study. An analytical thesis statement aims to discuss, glean information on the subject, and explain the facts of the topic. Here, the goal is to critically analyze and summarize the points you will cover in the study.  

Key takeaways

• A good thesis statement summarizes the central idea of your thesis or research paper.  
• It serves as a compass to show the reader what the research will contend and why.  
• Before creating a thesis statement, keep in mind that the statement should be specific, coherent, and controversial. 

Frequently asked questions (FAQs)

A thesis statement can be defined as a sentence that describes the main idea of the research or thesis to inform the reader of the argument the research will pursue and the reason the author adopts a specific stance on the subject. Essentially, it expresses the author’s judgment or opinion based on a review of the literature or personal research experience. 

Any academic essay or research piece must have a thesis statement since it directs the research and attracts the reader’s attention to the main idea of the subject under discussion. In addition to confining the author to a specific subject, so they don’t veer off topic, it also enables the reader to understand the topic at hand and what to expect.

To create an impactful thesis statement, simply follow these four easy steps. Start by creating a working statement by posing the question that your research or thesis will attempt to answer. Then, outline your initial response and choose your position on the matter. Next, try to substantiate your claim with facts or other relevant information. Finally, hone your final thesis statement by crafting a cogent narrative using knowledge gained in the previous step. 

Ideally the thesis statement should be placed at the end of an introduction of the paper or essay. Keep in mind that it is different from the topic sentence, which is more general.  

We hope this in-depth guide has allayed your concerns and empowered you to start working craft a strong statement for your essay or paper. Good luck with drafting your next thesis statement! 

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Try it for free or upgrade to Paperpal Prime , which unlocks unlimited access to premium features like academic translation, paraphrasing, contextual synonyms, consistency checks, submission readiness and more. It’s like always having a professional academic editor by your side! Go beyond limitations and experience the future of academic writing. Get Paperpal Prime now at just US$19 a month !    

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What is a thesis | A Complete Guide with Examples

Table of Contents

A thesis is a comprehensive academic paper based on your original research that presents new findings, arguments, and ideas of your study. It’s typically submitted at the end of your master’s degree or as a capstone of your bachelor’s degree.

However, writing a thesis can be laborious, especially for beginners. From the initial challenge of pinpointing a compelling research topic to organizing and presenting findings, the process is filled with potential pitfalls.

Therefore, to help you, this guide talks about what is a thesis. Additionally, it offers revelations and methodologies to transform it from an overwhelming task to a manageable and rewarding academic milestone.

What is a thesis?

A thesis is an in-depth research study that identifies a particular topic of inquiry and presents a clear argument or perspective about that topic using evidence and logic.

Writing a thesis showcases your ability of critical thinking, gathering evidence, and making a compelling argument. Integral to these competencies is thorough research, which not only fortifies your propositions but also confers credibility to your entire study.

Furthermore, there's another phenomenon you might often confuse with the thesis: the ' working thesis .' However, they aren't similar and shouldn't be used interchangeably.

A working thesis, often referred to as a preliminary or tentative thesis, is an initial version of your thesis statement. It serves as a draft or a starting point that guides your research in its early stages.

As you research more and gather more evidence, your initial thesis (aka working thesis) might change. It's like a starting point that can be adjusted as you learn more. It's normal for your main topic to change a few times before you finalize it.

While a thesis identifies and provides an overarching argument, the key to clearly communicating the central point of that argument lies in writing a strong thesis statement.

What is a thesis statement?

A strong thesis statement (aka thesis sentence) is a concise summary of the main argument or claim of the paper. It serves as a critical anchor in any academic work, succinctly encapsulating the primary argument or main idea of the entire paper.

Typically found within the introductory section, a strong thesis statement acts as a roadmap of your thesis, directing readers through your arguments and findings. By delineating the core focus of your investigation, it offers readers an immediate understanding of the context and the gravity of your study.

Furthermore, an effectively crafted thesis statement can set forth the boundaries of your research, helping readers anticipate the specific areas of inquiry you are addressing.

Different types of thesis statements

A good thesis statement is clear, specific, and arguable. Therefore, it is necessary for you to choose the right type of thesis statement for your academic papers.

Thesis statements can be classified based on their purpose and structure. Here are the primary types of thesis statements:

Argumentative (or Persuasive) thesis statement

Purpose : To convince the reader of a particular stance or point of view by presenting evidence and formulating a compelling argument.

Example : Reducing plastic use in daily life is essential for environmental health.

Analytical thesis statement

Purpose : To break down an idea or issue into its components and evaluate it.

Example : By examining the long-term effects, social implications, and economic impact of climate change, it becomes evident that immediate global action is necessary.

Expository (or Descriptive) thesis statement

Purpose : To explain a topic or subject to the reader.

Example : The Great Depression, spanning the 1930s, was a severe worldwide economic downturn triggered by a stock market crash, bank failures, and reduced consumer spending.

Cause and effect thesis statement

Purpose : To demonstrate a cause and its resulting effect.

Example : Overuse of smartphones can lead to impaired sleep patterns, reduced face-to-face social interactions, and increased levels of anxiety.

Compare and contrast thesis statement

Purpose : To highlight similarities and differences between two subjects.

Example : "While both novels '1984' and 'Brave New World' delve into dystopian futures, they differ in their portrayal of individual freedom, societal control, and the role of technology."

When you write a thesis statement , it's important to ensure clarity and precision, so the reader immediately understands the central focus of your work.

What is the difference between a thesis and a thesis statement?

While both terms are frequently used interchangeably, they have distinct meanings.

A thesis refers to the entire research document, encompassing all its chapters and sections. In contrast, a thesis statement is a brief assertion that encapsulates the central argument of the research.

Here’s an in-depth differentiation table of a thesis and a thesis statement.

Now, to craft a compelling thesis, it's crucial to adhere to a specific structure. Let’s break down these essential components that make up a thesis structure

15 components of a thesis structure

Navigating a thesis can be daunting. However, understanding its structure can make the process more manageable.

Here are the key components or different sections of a thesis structure:

Your thesis begins with the title page. It's not just a formality but the gateway to your research.

Here, you'll prominently display the necessary information about you (the author) and your institutional details.

• Title of your thesis
• Your full name
• Your department
• Your institution and degree program
• Your submission date
• Your Supervisor's name (in some cases)
• Your Department or faculty (in some cases)
• Your University's logo (in some cases)
• Your Student ID (in some cases)

In a concise manner, you'll have to summarize the critical aspects of your research in typically no more than 200-300 words.

This includes the problem statement, methodology, key findings, and conclusions. For many, the abstract will determine if they delve deeper into your work, so ensure it's clear and compelling.

Acknowledgments

Research is rarely a solitary endeavor. In the acknowledgments section, you have the chance to express gratitude to those who've supported your journey.

This might include advisors, peers, institutions, or even personal sources of inspiration and support. It's a personal touch, reflecting the humanity behind the academic rigor.

Table of contents

A roadmap for your readers, the table of contents lists the chapters, sections, and subsections of your thesis.

By providing page numbers, you allow readers to navigate your work easily, jumping to sections that pique their interest.

List of figures and tables

Research often involves data, and presenting this data visually can enhance understanding. This section provides an organized listing of all figures and tables in your thesis.

It's a visual index, ensuring that readers can quickly locate and reference your graphical data.

Introduction

Here's where you introduce your research topic, articulate the research question or objective, and outline the significance of your study.

• Present the research topic : Clearly articulate the central theme or subject of your research.
• Background information : Ground your research topic, providing any necessary context or background information your readers might need to understand the significance of your study.
• Define the scope : Clearly delineate the boundaries of your research, indicating what will and won't be covered.
• Literature review : Introduce any relevant existing research on your topic, situating your work within the broader academic conversation and highlighting where your research fits in.
• State the research Question(s) or objective(s) : Clearly articulate the primary questions or objectives your research aims to address.
• Outline the study's structure : Give a brief overview of how the subsequent sections of your work will unfold, guiding your readers through the journey ahead.

The introduction should captivate your readers, making them eager to delve deeper into your research journey.

Literature review section

Your study correlates with existing research. Therefore, in the literature review section, you'll engage in a dialogue with existing knowledge, highlighting relevant studies, theories, and findings.

It's here that you identify gaps in the current knowledge, positioning your research as a bridge to new insights.

To streamline this process, consider leveraging AI tools. For example, the SciSpace literature review tool enables you to efficiently explore and delve into research papers, simplifying your literature review journey.

Methodology

In the research methodology section, you’ll detail the tools, techniques, and processes you employed to gather and analyze data. This section will inform the readers about how you approached your research questions and ensures the reproducibility of your study.

Here's a breakdown of what it should encompass:

• Research Design : Describe the overall structure and approach of your research. Are you conducting a qualitative study with in-depth interviews? Or is it a quantitative study using statistical analysis? Perhaps it's a mixed-methods approach?
• Data Collection : Detail the methods you used to gather data. This could include surveys, experiments, observations, interviews, archival research, etc. Mention where you sourced your data, the duration of data collection, and any tools or instruments used.
• Sampling : If applicable, explain how you selected participants or data sources for your study. Discuss the size of your sample and the rationale behind choosing it.
• Data Analysis : Describe the techniques and tools you used to process and analyze the data. This could range from statistical tests in quantitative research to thematic analysis in qualitative research.
• Validity and Reliability : Address the steps you took to ensure the validity and reliability of your findings to ensure that your results are both accurate and consistent.
• Ethical Considerations : Highlight any ethical issues related to your research and the measures you took to address them, including — informed consent, confidentiality, and data storage and protection measures.

Moreover, different research questions necessitate different types of methodologies. For instance:

• Experimental methodology : Often used in sciences, this involves a controlled experiment to discern causality.
• Qualitative methodology : Employed when exploring patterns or phenomena without numerical data. Methods can include interviews, focus groups, or content analysis.
• Quantitative methodology : Concerned with measurable data and often involves statistical analysis. Surveys and structured observations are common tools here.
• Mixed methods : As the name implies, this combines both qualitative and quantitative methodologies.

The Methodology section isn’t just about detailing the methods but also justifying why they were chosen. The appropriateness of the methods in addressing your research question can significantly impact the credibility of your findings.

Results (or Findings)

This section presents the outcomes of your research. It's crucial to note that the nature of your results may vary; they could be quantitative, qualitative, or a mix of both.

Quantitative results often present statistical data, showcasing measurable outcomes, and they benefit from tables, graphs, and figures to depict these data points.

Qualitative results , on the other hand, might delve into patterns, themes, or narratives derived from non-numerical data, such as interviews or observations.

Regardless of the nature of your results, clarity is essential. This section is purely about presenting the data without offering interpretations — that comes later in the discussion.

In the discussion section, the raw data transforms into valuable insights.

Start by revisiting your research question and contrast it with the findings. How do your results expand, constrict, or challenge current academic conversations?

Dive into the intricacies of the data, guiding the reader through its implications. Detail potential limitations transparently, signaling your awareness of the research's boundaries. This is where your academic voice should be resonant and confident.

Practical implications (Recommendation) section

Based on the insights derived from your research, this section provides actionable suggestions or proposed solutions.

Whether aimed at industry professionals or the general public, recommendations translate your academic findings into potential real-world actions. They help readers understand the practical implications of your work and how it can be applied to effect change or improvement in a given field.

When crafting recommendations, it's essential to ensure they're feasible and rooted in the evidence provided by your research. They shouldn't merely be aspirational but should offer a clear path forward, grounded in your findings.

The conclusion provides closure to your research narrative.

It's not merely a recap but a synthesis of your main findings and their broader implications. Reconnect with the research questions or hypotheses posited at the beginning, offering clear answers based on your findings.

Reflect on the broader contributions of your study, considering its impact on the academic community and potential real-world applications.

Lastly, the conclusion should leave your readers with a clear understanding of the value and impact of your study.

References (or Bibliography)

Every theory you've expounded upon, every data point you've cited, and every methodological precedent you've followed finds its acknowledgment here.

In references, it's crucial to ensure meticulous consistency in formatting, mirroring the specific guidelines of the chosen citation style .

Proper referencing helps to avoid plagiarism , gives credit to original ideas, and allows readers to explore topics of interest. Moreover, it situates your work within the continuum of academic knowledge.

To properly cite the sources used in the study, you can rely on online citation generator tools  to generate accurate citations!

Here’s more on how you can cite your sources.

Often, the depth of research produces a wealth of material that, while crucial, can make the core content of the thesis cumbersome. The appendix is where you mention extra information that supports your research but isn't central to the main text.

Whether it's raw datasets, detailed procedural methodologies, extended case studies, or any other ancillary material, the appendices ensure that these elements are archived for reference without breaking the main narrative's flow.

For thorough researchers and readers keen on meticulous details, the appendices provide a treasure trove of insights.

Glossary (optional)

In academics, specialized terminologies, and jargon are inevitable. However, not every reader is versed in every term.

The glossary, while optional, is a critical tool for accessibility. It's a bridge ensuring that even readers from outside the discipline can access, understand, and appreciate your work.

By defining complex terms and providing context, you're inviting a wider audience to engage with your research, enhancing its reach and impact.

Remember, while these components provide a structured framework, the essence of your thesis lies in the originality of your ideas, the rigor of your research, and the clarity of your presentation.

As you craft each section, keep your readers in mind, ensuring that your passion and dedication shine through every page.

Thesis examples

To further elucidate the concept of a thesis, here are illustrative examples from various fields:

Example 1 (History): Abolition, Africans, and Abstraction: the Influence of the ‘Noble Savage’ on British and French Antislavery Thought, 1787-1807 by Suchait Kahlon.

Example 2 (Climate Dynamics): Influence of external forcings on abrupt millennial-scale climate changes: a statistical modelling study by Takahito Mitsui · Michel Crucifix

Checklist for your thesis evaluation

Evaluating your thesis ensures that your research meets the standards of academia. Here's an elaborate checklist to guide you through this critical process.

Content and structure

• Is the thesis statement clear, concise, and debatable?
• Does the introduction provide sufficient background and context?
• Is the literature review comprehensive, relevant, and well-organized?
• Does the methodology section clearly describe and justify the research methods?
• Are the results/findings presented clearly and logically?
• Does the discussion interpret the results in light of the research question and existing literature?
• Is the conclusion summarizing the research and suggesting future directions or implications?

Clarity and coherence

• Is the writing clear and free of jargon?
• Are ideas and sections logically connected and flowing?
• Is there a clear narrative or argument throughout the thesis?

Research quality

• Is the research question significant and relevant?
• Are the research methods appropriate for the question?
• Is the sample size (if applicable) adequate?
• Are the data analysis techniques appropriate and correctly applied?
• Are potential biases or limitations addressed?

Originality and significance

• Does the thesis contribute new knowledge or insights to the field?
• Is the research grounded in existing literature while offering fresh perspectives?

Formatting and presentation

• Is the thesis formatted according to institutional guidelines?
• Are figures, tables, and charts clear, labeled, and referenced in the text?
• Is the bibliography or reference list complete and consistently formatted?
• Are appendices relevant and appropriately referenced in the main text?

Grammar and language

• Is the thesis free of grammatical and spelling errors?
• Is the language professional, consistent, and appropriate for an academic audience?
• Are quotations and paraphrased material correctly cited?

Feedback and revision

• Have you sought feedback from peers, advisors, or experts in the field?
• Have you addressed the feedback and made the necessary revisions?

Overall assessment

• Does the thesis as a whole feel cohesive and comprehensive?
• Would the thesis be understandable and valuable to someone in your field?

Ensure to use this checklist to leave no ground for doubt or missed information in your thesis.

After writing your thesis, the next step is to discuss and defend your findings verbally in front of a knowledgeable panel. You’ve to be well prepared as your professors may grade your presentation abilities.

Preparing your thesis defense

A thesis defense, also known as "defending the thesis," is the culmination of a scholar's research journey. It's the final frontier, where you’ll present their findings and face scrutiny from a panel of experts.

Typically, the defense involves a public presentation where you’ll have to outline your study, followed by a question-and-answer session with a committee of experts. This committee assesses the validity, originality, and significance of the research.

The defense serves as a rite of passage for scholars. It's an opportunity to showcase expertise, address criticisms, and refine arguments. A successful defense not only validates the research but also establishes your authority as a researcher in your field.

Here’s how you can effectively prepare for your thesis defense .

Now, having touched upon the process of defending a thesis, it's worth noting that scholarly work can take various forms, depending on academic and regional practices.

One such form, often paralleled with the thesis, is the 'dissertation.' But what differentiates the two?

Dissertation vs. Thesis

Often used interchangeably in casual discourse, they refer to distinct research projects undertaken at different levels of higher education.

To the uninitiated, understanding their meaning might be elusive. So, let's demystify these terms and delve into their core differences.

Here's a table differentiating between the two.

Wrapping up

From understanding the foundational concept of a thesis to navigating its various components, differentiating it from a dissertation, and recognizing the importance of proper citation — this guide covers it all.

As scholars and readers, understanding these nuances not only aids in academic pursuits but also fosters a deeper appreciation for the relentless quest for knowledge that drives academia.

It’s important to remember that every thesis is a testament to curiosity, dedication, and the indomitable spirit of discovery.

Good luck with your thesis writing!

Frequently Asked Questions

A thesis typically ranges between 40-80 pages, but its length can vary based on the research topic, institution guidelines, and level of study.

A PhD thesis usually spans 200-300 pages, though this can vary based on the discipline, complexity of the research, and institutional requirements.

To identify a thesis topic, consider current trends in your field, gaps in existing literature, personal interests, and discussions with advisors or mentors. Additionally, reviewing related journals and conference proceedings can provide insights into potential areas of exploration.

The conceptual framework is often situated in the literature review or theoretical framework section of a thesis. It helps set the stage by providing the context, defining key concepts, and explaining the relationships between variables.

A thesis statement should be concise, clear, and specific. It should state the main argument or point of your research. Start by pinpointing the central question or issue your research addresses, then condense that into a single statement, ensuring it reflects the essence of your paper.

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9 Different Types of Thesis Statements: With Examples for Each

Types of Thesis Statements

A strong thesis statement is a fundamental part of a well-structured argumentative essay or academic paper. It holds various important purposes. 

Some of the purposes of a thesis statement include making the paper’s focus clear, guiding the writer, organizing the essay’s structure, enhancing clarity and understanding, and engaging the readers. 

It also helps the writer engage in critical thinking, enhances the strength of the essay’s argument, and improves consistency. A thesis statement is usually part of the evaluative criterion. 

The thing that differentiates a thesis statement from another is its particular characteristics and purpose. Different papers or essays require different types of thesis statements. 

This article will discuss the different types of thesis statements in terms of their definition and explanation, provide examples for those statements, and demonstrate when to use them. 

Different Types of Thesis Statements

1. the expository thesis statement.

This is a type of thesis statement used in research papers or expository essays. It is a clear and concise statement of the central argument or point of the essay.

The expository thesis statement is meant to explain, inform, or describe the topic that is being discussed.

It is neutral because its aim is not to persuade readers to adopt a particular perspective. It straightforwardly presents objective information and facts. 

One example of an expository thesis statement includes:  “The principles of Newton’s laws of motion lay the foundation for understanding the fundamental behavior of objects in the physical world.”

Another example is:  “The process of photosynthesis, in which plants convert sunlight into energy, is a crucial part of the ecosystem’s energy cycle.”

Expository thesis statements can be used in situations where the aim is to explain a concept, provide information, describe a process, or present objective facts without trying to persuade the audience. 

As such, expository thesis statements can be used in informative essays, expository research papers, how-to guides, and descriptive essays. 

2. The Argumentative Thesis Statement

This is a thesis statement used in persuasive or argumentative essays . It presents assertive, clear, and debatable claims that the author or writer wishes to support using logical reasoning and evidence within the essay. 

The argumentative thesis statement takes a stance on a particular viewpoint to persuade the reader to concur with that point of view. 

An example of the argumentative thesis statement includes:  “The government should implement stricter gun control laws to reduce the incidence of gun violence in the United States.”

Another good example is:  “Social media has a detrimental impact on mental health, as it promotes unrealistic standards and encourages constant comparison with others.”

As aforementioned, argumentative thesis statements are meant to convince, persuade, or argue for a specific viewpoint or position on a debatable or controversial issue.

Therefore, argumentative thesis statements can be used in persuasive essays, discussions and debates, controversial topics, and opinion editorials. 

3. The Analytical Thesis Statement

These are thesis statements used in research papers or analytical essays. They focus on breaking down and examining complex issues or topics into their basic parts and evaluating how they relate to each other. 

The main purpose of an analytical thesis statement is to give insight, understanding, and interpretation instead of informing or persuading the audience. 

One example of an analytical thesis statement is:  “The economic crisis of 2008 can be attributed to a combination of factors, including risky financial practices, regulatory failures, and the burst of the housing bubble.”

The second example is:  “In Shakespeare’s play ‘Hamlet,’ the character of Hamlet undergoes a profound transformation from a hesitant and indecisive prince to a vengeful and resolute avenger.”

The analytical thesis statement is used when the objective is to interpret, evaluate, or dissect a text, subject, or idea in a critical and detailed manner. 

Such statements can be used in literary analysis essays, critical essays, research papers, comparative essays, and interdisciplinary studies. 

4. The Comparative Thesis Statement

This is a thesis statement used in research papers or essays that are meant to compare and contrast two or more ideas, subjects, texts, or phenomena. 

A comparative thesis statement highlights the similarities and differences among the things or subjects that are being compared.

They give a debatable, focused, and clear claim meant to be the foundation for comparative analysis. 

The first example of such a comparative thesis statement is:  “A comparison of Eastern and Western philosophies reveals fundamental differences in their views on the self, the nature of reality, and the path to enlightenment.”

The second example is : “When assessing the impact of two different economic policies, a comparison of austerity measures and stimulus spending reveals varying effects on economic growth and unemployment rates.”

Such statements are used in comparative essays, literacy and textual analysis, cultural and historical studies, argumentative essays, and academic research. 

5. The Narrative Thesis Statement

The narrative thesis statement is used in storytelling contexts or narrative essays. It provides the main theme, point, or message the writer or narrator wants to convey.

It is focused on the purpose of the narrative in that it encapsulates the main lesson, idea, or experience the writer or narrator wishes to convey. 

An example of the narrative thesis statement is:  “The story of my grandmother’s life in war-torn Vietnam reflects the strength and determination that can emerge from adversity.”

Another example includes: “In the narrative of my childhood summers spent at the family cabin, I discovered the importance of cherishing simple moments with loved ones.”

Such thesis statements can be used in narrative essays, memoirs, personal reflections, oral storytelling, and creative writing. 

6. The Persuasive Thesis Statement

This is a thesis statement used in speeches, argumentative essays, and persuasive essays. Its main purpose is to give a clear and debatable claim which the writer intends to support, argue, and persuade the audience to accept. 

Persuasive thesis statements take a clear position concerning a controversial topic or issue and aim to convince the readers of the validity of that stance. 

An example of such a thesis statement is:  “The death penalty should be abolished because it is inherently inhumane, prone to error, and does not act as a deterrent to crime.”

Another example is:  “Public schools should implement comprehensive sex education programs to reduce teen pregnancy rates and promote responsible sexual behavior.”

Persuasive thesis statements can be used in argumentative essays, persuasive essays, speeches and debates, op-eds and editorials, and policy proposals. 

7. The Descriptive Thesis Statement

The descriptive thesis statement aims to paint a clear or vivid picture of an object, subject, experience, or place. 

It focuses on clearly describing the topic or conveying a specific feeling or impression about the topic. It helps the reader know what to expect when it comes to imagery, emotions, or sensory details in the essay. 

An example of a descriptive thesis statement is: “ The bustling, vibrant market in Marrakech, with its vibrant colors, exotic spices, and the hum of haggling, immerses visitors in the rich tapestry of Moroccan culture.”

Another example includes:  “The abandoned, dilapidated house at the end of the street, with broken windows and overgrown ivy, exudes an eerie and haunted aura.”

Such statements can be used in travel writing, descriptive essays, creative writing, art and film analysis, and immersive storytelling. 

8. The Problem-Solution Thesis Statement

This is a thesis statement primarily used in reports, essays, or papers meant to address a particular problem or issue and propose the course of action or solution to resolve the issue. 

The problem-solution thesis statement’s purpose is to recognize a significant issue and present an actionable and clear plan or solution to address it. 

An example of such a thesis statement is:  “The rising levels of air pollution in major cities can be mitigated by implementing stricter emission standards for vehicles and promoting the use of public transportation.”

Another example includes:  “To combat the obesity epidemic among children, schools should incorporate healthier meal options, increase physical education requirements, and promote nutritional education.”

The thesis statement can be used in policy proposals, business reports, problem-solving essays, community action plans, and scientific research. 

9. The Cause and Effect Thesis Statement

Finally, the cause-and-effect thesis statement is meant to explore and explain the connections between phenomena, actions, or events by recognizing the causes and their effects. 

Such thesis statements establish particular causal relationships by explaining how one action or event leads to another, and the reasons their connections are important. 

One example of a cause-and-effect thesis statement is:  “The excessive use of social media among teenagers can lead to increased feelings of loneliness and anxiety, as it hinders face-to-face social interactions and promotes social comparison.”

Another example includes:  “The decline of bee populations, caused by pesticide use and habitat destruction, has a cascading effect on food production and biodiversity, endangering global ecosystems.”

The thesis statement can be used in scientific research, cause and effect essays, historical analysis, environmental studies, and social and economic studies. 

A strong thesis statement is a very important part of a well-structured argumentative essay or academic paper.

What differentiates a thesis statement from another is its particular characteristics and purpose. Different papers or essays require different types of thesis statements.

Therefore, it is essential to first identify the type of paper or essay before deciding on the thesis statement to use. 

Josh Jasen or JJ as we fondly call him, is a senior academic editor at Grade Bees in charge of the writing department. When not managing complex essays and academic writing tasks, Josh is busy advising students on how to pass assignments. In his spare time, he loves playing football or walking with his dog around the park.

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What is a thesis statement? Read more about different types of thesis statements and examples to help you develop a more effective thesis statement of your own.

What is a Thesis Statement?

A thesis statement identifies the main point or central idea of your paper.

Where should I put it?

In most, but not all, academic papers, your thesis will be explicitly stated in one or two sentences near the beginning of your paper.

What are the most common kinds of thesis statements?

1. argument: state a point of view and support it with evidence..

Parts: Topic + position + reasons Example: Volunteer tourism in southeast Asia (topic) should be more strictly regulated (position) to prevent economic, social, and cultural exploitation (reasons).

2. Evaluation: Assess strengths and weaknesses.

Parts: Evaluation + reasons Example: Abraham Poincheval’s installation, Pierre, is a landmark in performance art (evaluation), not just because of its unique concept--a man living inside of a rock--but also because of the unique and deeply-felt responses it evokes from visitors of all ages (reasons).

3. Analysis: Examine the components of a text, object, or idea, and discuss how these components work together.

Parts: Components + effect(s) they produce Example: In Jane Eyre, the use of supernatural elements, mythic references, and fairy tale motifs contribute to a sense of unease throughout the book, making a conventional happy ending implausible.

4. Comparison: Examine the similarities and differences of texts, objects, or ideas.

Parts: Objects of comparison + conclusion Example: A comparison of the mechanisms and outcomes of immunotherapy and chemotherapy (objects of comparison) shows that immunotherapies are more effective in treating cancer and cause fewer harmful side effects for cancer patients (conclusion).

5. Cause and Effect: Focus on how actions or events contributed to specific outcomes.

Parts: Type of relationship + components Example: Many people believe the Great Depression was the result of the Stock Market Crash of 1929; however, the economic crisis in Canada (effect) was worsened by global trade agreements and government inaction

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What is preventative chemotherapy? Kate Middleton’s cancer treatment explained

Kate Middleton has been diagnosed with cancer, Kensington Palace announced.

In a video statement released on Friday, the Princess of Wales, 42, revealed her diagnosis, more than three months after undergoing a planned abdominal surgery when doctors believed her condition to be non-cancerous.

“However, tests after the operation found cancer had been present,” she said in the video, released by the palace. “My medical team therefore advised that I should undergo a course of preventative chemotherapy, and I am now in the early stages of that treatment.”

While the palace did not disclose what kind or stage of cancer she has, the diagnosis “shocked” both her and Prince William, but she assured viewers she is “well and getting stronger every day” after her successful January surgery.

“At this time, I am also thinking of all those whose lives have been affected by cancer,” continued Middleton, who has remained out of the public eye since the Jan. 17 procedure. “For everyone facing this disease, in whatever form, please do not lose faith or hope. You are not alone.”

In the royal announcement Friday, Kate thanked the public for their support and asked for “space and privacy” while she completes preventative chemotherapy treatment.

Marleen Meyers , MD, a medical oncologist and Director of the cancer survivorship program at NYU Langone Perlmutter Cancer Center , told The Post that while it’s “difficult to comment on her specific treatment” since the type or stage of the Princess of Wales’ cancer is unknown, preventative chemotherapy is all about lowering risk.

“Preventive chemo, also called adjuvant chemotherapy is sometimes used after the primary cancer is removed to try to lower the risk of it coming back,” she said.

The treatment is suitable for someone who is at a higher risk of developing particular types of cancer due to family history, their lifestyle or having a precancerous condition.

“We often give preventative chemotherapy for several kinds of cancer to try to eradicate microscopic cells that cannot be seen on scans but can grow if left untreated,” Meyers added.

Adjuvant therapy can be used when other treatment methods will not be effective, although the choice to undergo preventative chemo depends on the type and stage of cancer, if it is receptive to hormone therapy and the number of lymph nodes involved, per Mayo Clinic .

“The benefit of doing this very much depends on the stage of the cancer and type of cancer and that is not information we have on the Princess of Wales,” Meyers explained.

After the successful removal of cancerous or precancerous cells, undetectable microscopic cancer cells may still linger in the body and result in recurring cancer even months to years following initial treatment or entering remission.

Adjuvant chemotherapy treatment — which can last for weeks or up to years — attacks those cells systemically and eliminates the disease present, lowering the risk of recurrence.

While preventative chemotherapy may treat many different kinds of cancer, it is most commonly used in patients who have been diagnosed with breast cancer, colon cancer and ovarian cancer.

“Even if cancer is resected for curative intent, there may be a high risk of recurrence so chemotherapy may be used,” Meyers said. “This may be done in breast, ovarian and colon cancer among others.”

“The specific drugs and duration of treatment will depend on the type of cancer,” Meyers explained.

According to Healthline , chemotherapy drugs kill fast-growing cancer cells, but can also damage healthy cells, causing short-term gastrointestinal side effects like nausea, vomiting, loss of appetite, diarrhea, constipation and weight loss.

The medications can also result in mouth sores, hair loss, mouth sores, fatigue, anemia and more, although healthier individuals are less likely to experience side effects.

However, there are long-term consequences of taking chemotherapy drugs, such as early menopause or damage to the heart, lungs, kidney or nerves.

What type of cancer does Kate Middleton have?

The Princess Of Wales announced she is currently undergoing chemotherapy

The 42-year-old shared a pre-recorded video message at 6pm tonight which explained her absence from public duties since it was announced that she had had a 'pre-planned' op in January.

In the 2-minute clip, which was filmed on Wednesday, the Princess looks pale and drawn. Dressed casually in a breton striped top and jeans, she spoke calmly and quietly about her diagnosis, silencing weeks of frenzied and often outlandish discussion about her whereabouts and welfare.

Kate Middleton's cancer statement in full

'I wanted to take this opportunity to say thank you. For all the wonderful messages of support and for your understanding whilst I've been recovering from surgery. It has been an incredibly tough couple of months for my entire family. But I've had a fantastic medical team who've taken great care of me for which I'm so grateful.

'In January, I underwent major abdominal surgery in London, and at the time it was thought that my condition was non cancerous. The surgery was successful.

'However, tests after the operation found cancer had been present. My medical team therefore advised that I should undergo a course of preventative chemotherapy . And I'm now in the early stages of that treatment.

'This of course, came as a huge shock. And William and I have been doing everything we can to process and manage this privately, for the sake of our young family. As you can imagine, this has taken time, it has taken me time to recover from major surgery in order to start my treatment. But most importantly, it has taken us time, to explain everything to George, Charlotte and Louis in a way that's appropriate for them and to reassure them that I'm going to be okay.

Read now: What is preventative chemotherapy?

'As I said to them, I am well. I am getting stronger every day by focusing on the things that will help me heal, in my mind, body and spirit. Having William by my side is a great source of comfort and reassurance too, as is the love support and kindness that has been shown by so many of you.

'It means so much and we hope that you will understand that as a family, we now need some time, space and privacy while I complete my treatment.

'My work has always brought me a deep sense of joy. And I look forward to being back when I'm able, but for now I must focus on making a full recovery. At this time, I also thinking of all those whose lives have been affected by cancer. For everyone who faces disease in whatever form, please do not lose faith or hope you are not alone.'

What cancer does Kate Middleton have?

The Princess of Wales has not explicitly revealed what sort of cancer she has been diagnosed with. All that is known is that cancerous cells were found after she had major abdominal surgery in January.

At the time of the operation, Kensington Palace stated that it would not be commenting further on the Princess' condition, apart from significant updates.

Kate Middleton cancer diagnosis timeline

On January 17, the public were told that the Princess of Wales had undergone an operation at The London Clinic and that she wouldn't be returning to public duties until after Easter.

Kensington Palace shared an official statement on the Prince and Princess of Wales’ Instagram account that read: 'Her Royal Highness The Princess of Wales was admitted to hospital yesterday for planned abdominal surgery. The surgery was successful and it is expected that she will remain in hospital for ten to fourteen days, before returning home to continue her recovery. Based on the current medical advice, she is unlikely to return to public duties until after Easter.

'The Princess of Wales appreciates the interest this statement will generate,' the statement continued. 'She hopes that the public will understand her desire to maintain as much normality for her children as possible; and her wish that her personal medical information remains private.'

Kate received abdominal surgery at The London Clinic, the largest independent, private hospital in the UK. It was opened by Queen Elizabeth II’s parents—King George VI and Queen Elizabeth, the Queen Mother—in 1932. The hospital is currently equipped to treat 155 different conditions and has over 1,000 nursing, clinical, and support staff.

No official diagnosis or reason for Kate's surgery was given, but a source told US magazine PEOPLE that the issue is 'non-cancerous'. The title also reported that the Princess of Wales' 'situation came as a surprise even to those who work closely with the royal family' and that 'within their broader circle of family friends, there had been no indication that anything was wrong.'

Twelve days after her surgery, on January 29, Kensington Palace released a new statement which announced that Kate was back home and 'making good progress'.

It read: 'The Princess of Wales has returned home to Windsor to continue her recovery from surgery. She is making good progress,' Kensington Palace shared on Instagram. The Prince and Princess of Wales also wished 'a huge thank you to the entire team at the London Clinic, especially the dedicated nursing staff' in the statement.

Between Christmas Day, when she went to church with the rest of the Royal family, and early March when she was papped riding in a car with her mum Carole Middleton, there was no sight of Kate or update about her whereabouts, trigging a wave of outlandish and ludicrous conspiracy theories.

Amid the furore, the reports from US titles and their unnamed sources continued. 'Kate’s said she feels she’s entitled to heal and recuperate without all of this frenzied speculation,' a source told Us Weekly earlier this month. 'Neither Kate nor William think her medical records should be for public consumption.' The insider also said that Kate is 'trying not to pay attention to all the rumours and gossip, and William is doing his best to shield her, but it’s distressing.'

But this has applied to her close circle, with the publication revealing that even people close to Kate don’t know what’s going on. Kate has reportedly had a few visitors, including King Charles and Queen Camilla, but her condition is otherwise covered by a 'shroud of secrecy.'

'A few of Kate’s senior staffers haven’t been able to see or speak to her, and they didn’t even know about the surgery until it was announced, so it’s caught them off guard,' a second said. The insider added that Kate has only just started to tell people about what her operation was about. 'Only a few people know what’s really going on, and they’re tight-lipped,' they said.

On March 4, Kate was seen in public for the first time since Christmas, riding in the passenger seat of a car driven by her mother, Carole Middleton. However, that picture has been questioned on social media, with people claiming that it's been edited , or that the person in the car is actually Kate’s sister Pippa Middleton.

To mark Mother's Day, Kensington Palace released an IG photo of Kate and her three children, which it was claimed was taken the week prior. In her first public post since undergoing surgery earlier this year, Kate thanked fans for their 'kind wishes and continued support over the last two months.' She named Prince William as the photographer on the image.

The snap set the internet ablaze, with commenters pointing out what appeared to be editing fails on Princess Charlotte's left hand and Prince Louis' shoulders, along with other inconsistencies. The picture was distributed internationally, before new agencies including Associated Press and Reuters removed it from their websites on claims that the photo was edited.

The next day, Kate issued an apology to address 'confusion' over the photo of herself with her kids. 'Like many amateur photographers, I do occasionally experiment with editing,' she said in a statement released on X (formerly Twitter). 'I wanted to express my apologies for any confusion the family photograph we shared yesterday caused. I hope everyone celebrating had a very happy Mother's Day.' The post was signed 'C' for Catherine.

Releasing the apology has reportedly infuriated Kate, with friends telling The Daily Beast that she and William plan to fire staffers responsible for the photo mess-up once the public has moved on.

On the same day she apologised, Kate was photographed riding in a car with Prince William while leaving Windsor, although her face was obscured.

Goff Photos, the agency that took the picture, said in a statement to Today on March 12 that the snap was 'cropped and lightened' but that 'nothing has been doctored.'

Photographer Jim Bennett, who took the picture, shared that car shots are 'unpredictable at the best of times…and with some reflection on the glass it can be difficult,' per People .

Bennett said he was expecting to snap a picture of William, but it wasn’t until he looked at the frame that he realised Kate was in the car, too.

The couple were then caught on film at a farm shop in Windsor - but conspiracists questioned the legitimacy of the footage, saying it was a Kate 'lookalike', or had been shot in December due to there being Christmas lights on display.

A few days later, William spoke at the Diana Legacy Awards in London and casually slipped Kate’s name into his speech. '[Princess Diana’s] legacy is something that both Catherine and I have sought to focus on through our work, as have the 50,000 young people who have received a Diana Award over the past 25 years,' he said.

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The Effects of Climate Change

The effects of human-caused global warming are happening now, are irreversible for people alive today, and will worsen as long as humans add greenhouse gases to the atmosphere.

• We already see effects scientists predicted, such as the loss of sea ice, melting glaciers and ice sheets, sea level rise, and more intense heat waves.
• Scientists predict global temperature increases from human-made greenhouse gases will continue. Severe weather damage will also increase and intensify.

Earth Will Continue to Warm and the Effects Will Be Profound

Global climate change is not a future problem. Changes to Earth’s climate driven by increased human emissions of heat-trapping greenhouse gases are already having widespread effects on the environment: glaciers and ice sheets are shrinking, river and lake ice is breaking up earlier, plant and animal geographic ranges are shifting, and plants and trees are blooming sooner.

Effects that scientists had long predicted would result from global climate change are now occurring, such as sea ice loss, accelerated sea level rise, and longer, more intense heat waves.

"The magnitude and rate of climate change and associated risks depend strongly on near-term mitigation and adaptation actions, and projected adverse impacts and related losses and damages escalate with every increment of global warming." - Intergovernmental Panel on Climate Change

Some changes (such as droughts, wildfires, and extreme rainfall) are happening faster than scientists previously assessed. In fact, according to the Intergovernmental Panel on Climate Change (IPCC) — the United Nations body established to assess the science related to climate change — modern humans have never before seen the observed changes in our global climate, and some of these changes are irreversible over the next hundreds to thousands of years.

Scientists have high confidence that global temperatures will continue to rise for many decades, mainly due to greenhouse gases produced by human activities.

The IPCC’s Sixth Assessment report, published in 2021, found that human emissions of heat-trapping gases have already warmed the climate by nearly 2 degrees Fahrenheit (1.1 degrees Celsius) since 1850-1900. 1 The global average temperature is expected to reach or exceed 1.5 degrees C (about 3 degrees F) within the next few decades. These changes will affect all regions of Earth.

The severity of effects caused by climate change will depend on the path of future human activities. More greenhouse gas emissions will lead to more climate extremes and widespread damaging effects across our planet. However, those future effects depend on the total amount of carbon dioxide we emit. So, if we can reduce emissions, we may avoid some of the worst effects.

"The scientific evidence is unequivocal: climate change is a threat to human wellbeing and the health of the planet. Any further delay in concerted global action will miss the brief, rapidly closing window to secure a liveable future." 2 - Intergovernmental Panel on Climate Change

Future effects of global climate change in the united states:.

Here are some of the expected effects of global climate change on the United States, according to the Third and Fourth National Climate Assessment Reports.

U.S. Sea Level Likely to Rise 1 to 6.6 Feet by 2100

Global sea level has risen about 8 inches (0.2 meters) since reliable record-keeping began in 1880. By 2100, scientists project that it will rise at least another foot (0.3 meters), but possibly as high as 6.6 feet (2 meters) in a high-emissions scenario. Sea level is rising because of added water from melting land ice and the expansion of seawater as it warms.

Climate Changes Will Continue Through This Century and Beyond

Global climate is projected to continue warming over this century and beyond.

Hurricanes Will Become Stronger and More Intense

Scientists project that hurricane-associated storm intensity and rainfall rates will increase as the climate continues to warm.

More Droughts and Heat Waves

Droughts in the Southwest and heat waves (periods of abnormally hot weather lasting days to weeks) are projected to become more intense, and cold waves less intense and less frequent.

Longer Wildfire Season

Warming temperatures have extended and intensified wildfire season in the West, where long-term drought in the region has heightened the risk of fires. Scientists estimate that human-caused climate change has already doubled the area of forest burned in recent decades. By around 2050, the amount of land consumed by wildfires in Western states is projected to further increase by two to six times. Even in traditionally rainy regions like the Southeast, wildfires are projected to increase by about 30%.

Changes in Precipitation Patterns

Climate change is having an uneven effect on precipitation (rain and snow) in the United States, with some locations experiencing increased precipitation and flooding, while others suffer from drought. On average, more winter and spring precipitation is projected for the northern United States, and less for the Southwest, over this century.

Frost-Free Season (and Growing Season) will Lengthen

The length of the frost-free season, and the corresponding growing season, has been increasing since the 1980s, with the largest increases occurring in the western United States. Across the United States, the growing season is projected to continue to lengthen, which will affect ecosystems and agriculture.

Global Temperatures Will Continue to Rise

Summer of 2023 was Earth's hottest summer on record, 0.41 degrees Fahrenheit (F) (0.23 degrees Celsius (C)) warmer than any other summer in NASA’s record and 2.1 degrees F (1.2 C) warmer than the average summer between 1951 and 1980.

Arctic Is Very Likely to Become Ice-Free

Sea ice cover in the Arctic Ocean is expected to continue decreasing, and the Arctic Ocean will very likely become essentially ice-free in late summer if current projections hold. This change is expected to occur before mid-century.

U.S. Regional Effects

Climate change is bringing different types of challenges to each region of the country. Some of the current and future impacts are summarized below. These findings are from the Third 3 and Fourth 4 National Climate Assessment Reports, released by the U.S. Global Change Research Program .

• Northeast. Heat waves, heavy downpours, and sea level rise pose increasing challenges to many aspects of life in the Northeast. Infrastructure, agriculture, fisheries, and ecosystems will be increasingly compromised. Farmers can explore new crop options, but these adaptations are not cost- or risk-free. Moreover, adaptive capacity , which varies throughout the region, could be overwhelmed by a changing climate. Many states and cities are beginning to incorporate climate change into their planning.
• Northwest. Changes in the timing of peak flows in rivers and streams are reducing water supplies and worsening competing demands for water. Sea level rise, erosion, flooding, risks to infrastructure, and increasing ocean acidity pose major threats. Increasing wildfire incidence and severity, heat waves, insect outbreaks, and tree diseases are causing widespread forest die-off.
• Southeast. Sea level rise poses widespread and continuing threats to the region’s economy and environment. Extreme heat will affect health, energy, agriculture, and more. Decreased water availability will have economic and environmental impacts.
• Midwest. Extreme heat, heavy downpours, and flooding will affect infrastructure, health, agriculture, forestry, transportation, air and water quality, and more. Climate change will also worsen a range of risks to the Great Lakes.
• Southwest. Climate change has caused increased heat, drought, and insect outbreaks. In turn, these changes have made wildfires more numerous and severe. The warming climate has also caused a decline in water supplies, reduced agricultural yields, and triggered heat-related health impacts in cities. In coastal areas, flooding and erosion are additional concerns.

1. IPCC 2021, Climate Change 2021: The Physical Science Basis , the Working Group I contribution to the Sixth Assessment Report, Cambridge University Press, Cambridge, UK.

2. IPCC, 2013: Summary for Policymakers. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

3. USGCRP 2014, Third Climate Assessment .

4. USGCRP 2017, Fourth Climate Assessment .

Related Resources

A Degree of Difference

So, the Earth's average temperature has increased about 2 degrees Fahrenheit during the 20th century. What's the big deal?

What’s the difference between climate change and global warming?

“Global warming” refers to the long-term warming of the planet. “Climate change” encompasses global warming, but refers to the broader range of changes that are happening to our planet, including rising sea levels; shrinking mountain glaciers; accelerating ice melt in Greenland, Antarctica and the Arctic; and shifts in flower/plant blooming times.

Is it too late to prevent climate change?

Humans have caused major climate changes to happen already, and we have set in motion more changes still. However, if we stopped emitting greenhouse gases today, the rise in global temperatures would begin to flatten within a few years. Temperatures would then plateau but remain well-elevated for many, many centuries.

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What we know about the Princess of Wales’s cancer diagnosis

Condition diagnosed after abdominal surgery prompts questions about treatment, recovery and prognosis

• Princess of Wales receiving chemotherapy
• Live reactions: Princess of Wales’s diagnosis
• Catherine’s statement in full

The Princess of Wales has become one of hundreds of thousands of Britons diagnosed with cancer every year.

Here is what is known so far about Catherine’s condition.

What type of cancer has she been diagnosed with?

Catherine, 42, has been diagnosed with an unspecified form of cancer.

In a personal message issued on Friday evening , the princess said that when she underwent major abdominal surgery in January, “it was thought that my condition was non-cancerous”.

The surgery, which took place at the London Clinic, was successful. After 13 nights in hospital, the princess left the clinic on 29 January. “However, tests after the operation found cancer had been present,” she said on Friday.

Kensington Palace said it would not be sharing any further medical information about the form or stage of cancer that was discovered.

What kind of tests were performed?

Details of the type of test have not been divulged but diagnostic tests for cancer can involve blood tests, scans and biopsies.

A biopsy is a medical procedure that involves taking a small sample so it can be examined under a microscope to identify whether there are abnormal cells present. Catherine said that “tests after the operation found cancer had been present”.

What is being done?

In her personal message, the princess said her medical team advised that she should undergo a course of preventive chemotherapy.

Chemotherapy is a treatment where medicine is used to kill cancer cells. There are many different types of chemotherapy medicine but they all work in a similar way. They stop cancer cells reproducing, which prevents them from growing and spreading in the body.

Catherine said on Friday she was “in the early stages” of the treatment.

When did she begin treatment?

The Guardian understands that Catherine began a course of preventive chemotherapy in late February.

When will the treatment finish?

She is still in the early stages and the decision on when it could be completed will be subject to medical advice.

How is Catherine feeling?

She said the last couple of months had been “incredibly tough” for her and her family but she was in good spirits and focused on recovering.

“I am well and getting stronger every day by focusing on the things that will help me heal; in my mind, body and spirits.”

The princess added that she was looking forward to returning to work but for now “must focus on making a full recovery”.

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Will her diagnosis raise awareness?

Yes. When her father-in-law, King Charles, shared his diagnosis of cancer earlier this year there was a significant increase in searches for the condition on the NHS website.

The head of the NHS described Catherine’s cancer diagnosis as “shocking” but praised her for speaking publicly about the condition.

Amanda Pritchard, NHS England’s chief executive, said: “Speaking out about it is really brave and it can help others to get worrying signs and symptoms checked. If you’re worried about cancer, the NHS website has more information here .”

How many people are diagnosed with cancer every year in the UK?

According to Macmillan Cancer Support, about 393,000 people in the UK are diagnosed with cancer each year.

Half of those diagnosed with cancer in the UK survive for at least 10 years after diagnosis, according to Cancer Research UK figures, but survival rates vary for each type of cancer.

Each year about 167,000 people die from cancer in the UK. In 2021, one in four of all deaths were caused by cancer, the charity says on its website.

How rare is it for someone to be diagnosed with cancer in their 40s?

Anyone can get cancer, but cancer at a young age is rare. Most cases of cancer are in people aged 50 and over.

However, the number of under-50s worldwide being diagnosed with cancer has increased by nearly 80% in three decades, according to the largest study of its kind.

Global cases of early onset cancer increased from 1.82m in 1990 to 3.26m in 2019, while cancer deaths of adults in their 40s, 30s or younger grew by 27%.

Were both King Charles and the Princess of Wales diagnosed with cancer after being treated for something else?

Yes. Buckingham Palace said that during the king’s procedure for a benign prostate enlargement, a “separate issue of concern” was noted. Further diagnostic tests identified a “form of cancer”, the palace said.

Catherine only found she had cancer after undergoing abdominal surgery in January. Kensington Palace has not disclosed why she needed surgery in the first place.

That is why it is important to be aware of any new or worrying symptoms or changes to your health. Although it is unlikely to be cancer, it is important to speak to a GP so they can investigate. Finding cancer early means it is easier to treat.

• Catherine, Princess of Wales
• King Charles III

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