Fair use:part of the copyright law that allows limited use of copyrighted material without needing permission from the copyright holder. This can include uses for purposes such as criticism, news reporting, teaching, and parody. The determination of fair use typically considers four factors:
- Purpose and character of the use: Whether the use is for commercial or nonprofit educational purposes, and if it is transformative (adding new expression or meaning).
- Nature of the copyrighted work: Whether the work is more factual or creative.
- Amount and substantiality of the portion used: How much of the work is used and its significance.
- Effect on the market: The impact of the use on the market value of the original work.