This document provides guidance on email etiquette and best practices for writing professional emails. It covers topics like the five C's of email writing (complete, clear, correct, concise, courteous), important email terms like To, CC, BCC, formatting elements like subject lines, greetings, introductions, bodies, calls to action, and signatures. It also includes examples of email topics and common acronyms used in business emails. The document aims to teach readers how to properly structure emails and communicate effectively and appropriately via this channel.