Links Use this Sample Basic Essay as a Model The essay below demonstrates the principles of writing a basic essay. The different parts of the essay have been labeled. The thesis statement is in bold, the topic sentences are in italics, and each main point is underlined. When you write your own essay, of course, you will not need to mark these parts of the essay unless your teacher has asked you to do so. They are marked here just so that you can more easily identify them.