This document provides guidance on writing an opinion essay, including the basic structure and dos and don'ts. It should be structured in 4 paragraphs, with the first introducing the topic and opinion, and the following paragraphs each providing a reason to support the opinion. Formal language should be used without colloquialisms, short forms, or personal examples. A variety of expressions and linking words are also provided to help introduce opinions, reasons, facts, contrasts, purposes, and conclude the essay.