This document provides an overview of email, including how to send and receive emails, attach files, send emails to groups, forward messages, and the advantages of email over other forms of communication like phone calls or regular mail. It discusses what is needed to use email, including an internet connection, email program or web-based email service, and email address. It also covers best practices for composing and sending emails as well as email etiquette and tips for safely using email and the internet.