This document provides an overview of copyright, the TEACH Act, fair use, and when permission is required to use copyrighted works. It defines copyright as giving creators control over how their works are used. The TEACH Act allows educators to display copyrighted materials for educational purposes without permission. Fair use considers the purpose of the use, nature of the work, amount used, and effect on the market. Permission is required for commercial use, repeated use, or using a work in its entirety, especially if it is over 2,500 words.