This Fall 2021 Supplement is the product of our effort to capture important developments in copyright law since the publication of the second edition of Copyright: A Contemporary Approach. It includes two new principal cases, both Supreme Court decisions: the 2021 fair use decision in Google LLC v. Oracle America, Inc., and the 2020 decision about copyright protection for state statutes in Georgia v. Public.Resources.Org. The supplement also includes notes on many other cases, and a few new features that we thought would enhance study of U.S. copyright law. In light of the passage of the Music Modernization Act in October 2018, we have completely revised Chapter 12.E., on digital audio transmission rights, and Chapter 12.F., on rights in pre-1972 sound recordings. The new Chapter 12.E. in this supplement, “Digital Streaming of Music After the Musical Works Modernization Act,” now consists of a general introduction to copyright and the streaming of music, covering both rights in sound recordings and rights in musical works, and all of the relevant exclusive rights