A thesis statement is an important part of academic writing. Essentially, it tells what you want your readers to know, believe or understand after they have read your research paper. It is usually one and no more than two sentences long. It usually is at the end of your first paragraph. A thesis statement is focused and specific enough to be proven in the text of your paper.
A variety of sites show you how to compose a thesis statement. Try one of these to become familiar with the process of writing one.