The Four Factors of Fair Use - Continued
Intellectual Property Information Center at Kansas State University Online Tutorial on Copyright Basics
Amount: are you copying an entire two hundred page book or just a single page?
Substantiality: are you copying the defining portion (the main line, lyric, phrase, riff or hook) of song or just a few bars?
4. What effect will your copying have on the potential market for (or the value of) the original work?
Will your usage of the copied material compete with the original?
3. The amount and substantiality of the portion to be copied in relation to the copyrighted work as a whole