The thesis statement http://essaypro.com/blog/thesis-statement is one of the most important parts of an essay. It helps establish the writer's stand on the topic and sets the direction of the rest of the paper. A good thesis statement is specific, focused, and coherent. During the writing process, it may be changed to reflect the changes in the essay. Often, a thesis statement is the first sentence of an essay. This is because it gives the reader a sense of what to expect from the paper.