Fair Use under 17 U.S. Code § 107

Fair use allows limited use of copyrighted material without permission from the copyright owner for purposes such as criticism, comment, news reporting, teaching, scholarship, or research. The key factors in determining fair use include:

1. Purpose and Character: Whether the use is commercial or for nonprofit educational purposes.
2. Nature of the Work: The type of copyrighted work being used.
3. Amount and Substantiality: The portion of the work used in relation to the whole work.
4. Effect on the Market: The impact of the use on the market value of the copyrighted work.