Copyright and Creativity. CC BY 4.0. 11/19/2020 https://oercommons.org/courses/infographic-10-things-you-should-know-about-copyright
According to the U.S. Copyright Office, copyright is: "a form of protection grounded in the U.S. Constitution and granted by law for original works of authorship fixed in a tangible medium of expression. Copyright covers both published and unpublished works
The three requirements for copyright:
Under 17 USCS Section 102 the following is protected:
"In no case does copyright protection for an original work of authorship extend to any idea, procedure, process, system, method of operation, concept, principle, or discovery, regardless of the form in which it is described, explained, illustrated, or embodied in such work."
-Derived from the Copyright Clearance Center's 2006 Copyright Education Series Foundations Workbook
The United States has had several copyright codes in its history, so depending on when a work was created, it may or may not be protected by copyright. Check out the American Library Association's Digital Copyright Slider to see if what you want to use is in the public domain or covered by copyright.
Code relevant to copyright protection
Code relevant to fair use exceptions
Code relevant to exceptions for libraries and archives
Code relevant to first sale (the right to sell or loan a copyrighted item you have purchased)
Code relevant to copyright ownership and transfer
Code relevant to copyright duration