Fair use is a doctrine within U.S. copyright law that allows for the limited use of copyrighted material without the permission of the copyright holder, in certain prescribed circumstances. More information about how to make a fair use assessment can be found in the fair use section of this copyright guide.  For additional support in seeking permission to use in-copyright materials, please see the LibGuide Copyright Resources to Support Publishing and Teaching: Getting Permission - https://guides.library.upenn.edu/copyright/permission