This document provides an overview of expository writing. It defines expository writing as presenting reasons, explanations, or steps in a process in an informational way. The main focuses of an expository essay are logic and coherence. It explains that expository writing does not tell a story or persuade, but only gives facts. It also outlines the typical structure of an expository essay, including an introduction with a thesis statement and overview of main points, body paragraphs with one main point each supported by details, and a conclusion that restates the main points.