This document provides examples of appropriate email styles and content for business communications. It includes sample emails and exercises for the reader to practice writing effective emails. Key points covered are using a clear subject line, being direct, limiting length, and choosing an appropriate level of formality for the context. Formal styles use titles and salutations while informal styles use first names; contractions and short sentences are generally avoided in formal emails. The document helps readers understand how to structure emails and use language suitable for different business situations.