This title provides a clear and thorough exploration of the doctrinal and policy issues in American copyright law. In a style accessible to both students and practitioners, it covers every major topic in basic copyright courses. This new edition, updated through mid-2024, will become an essential resource for students and practitioners. Topics covered: History of the development of authors' rights and of copyright Subject matter, including original works of authorship and artificial intelligence Ownership, including works made for hire, transfers of ownership and termination of transfers Duration and Formalities Exclusive rights, including their transposition to the digital environment Fair use, including the impact of the Supreme Court's decision in Andy Warhol Foundation v. Goldsmith , and the operation of fair use in the digital and AI environments Secondary liability, both at common law and as developed through application of the DMCA to Internet service providers Enforcement, including "paracopyright" protections against circumvention of technological protection measures and for copyright management information Federal preemption of state law, including with respect to mass market "browsewrap" licenses.