This document provides information and guidance on writing a comparison/contrast essay. It defines what a comparison/contrast essay is and explains that the goal is to point out similarities and differences between two or more topics. The document discusses the two main organizational patterns for these essays - subject by subject, where each topic is discussed separately, and point by point, where each key point is discussed together for all topics. It provides examples of how to outline essays using these structures and suggests transition words that can be used to help compare and contrast topics. Finally, it offers guidance on writing an effective thesis statement that clearly defines what will be compared or contrasted.