There are three main types of thesis statement: argumentative, which presents a claim and defends it with evidence; expository, which explains a topic without arguing a position; and analytical, which breaks down one aspect of a text or issue.
These types differ by purpose, not format: an argumentative thesis takes a debatable stance, an expository thesis stays neutral and informative, and an analytical thesis examines how something works or what it means.
Separately, a thesis statement is often described as having three parts: the topic, your claim or position on it, and the key reasons that will structure your body paragraphs.
For example, in ‘Social media harms teenage mental health because it increases comparison, reduces sleep, and encourages cyberbullying,’ the topic is social media, the claim is harm, and the three reasons preview the body paragraphs.
Whichever type you’re writing, the thesis statement usually sits at the end of your introduction, as explained in our essay introduction guide, so the reader knows your direction before the body begins.
If you’re unsure which type fits your assignment brief, our essay topic and outline service can help you draft a clear thesis before you write the full essay.


