This document provides a comprehensive guide to writing effective emails. It explains that an email is a digital message that can include attachments. The objectives are to understand email structure and format, and how to write comprehensive emails. It describes the typical sections of an email - details, content, and conclusion. The details section includes from, to, and subject. The content section has a greeting, opening, and body. The conclusion has a closing, sign-off, and signature. The document provides an example email to a professor requesting a make-up test. It explains carbon copy and blind carbon copy functions for sending to multiple recipients. Finally, it notes the importance of writing good versus poor emails.