An expository essay is a type of writing that aims to inform, explain, or describe a topic clearly and concisely. It is structured around a main idea or thesis and supported by evidence, examples, and logical reasoning. The goal is to provide readers with a comprehensive understanding of the subject without including the writer's opinions or emotions. Typically, an expository essay follows a standard format, including an introduction with a thesis statement, body paragraphs that delve into specific points, and a conclusion that summarizes the main ideas. This form of essay is commonly used in academic settings to assess students' understanding and ability to convey information effectively.