The text provides a clear and thorough exploration of the doctrinal and policy issues in American copyright law in a style accessible to both new and advanced intellectual property students, as well as to practitioners. The book covers every major topic in basic copyright courses: the history of copyright, ownership and duration, formalities, exclusive rights of the copyright holder, fair use, civil and criminal enforcement of copyright law, and federal preemption of state law. Beyond that, the authors address the major new issues that have emerged over the past two decades, including the rules of the Digital Millennium Copyright Act regarding circumvention of technological protections of copyrighted materials, and the principles of secondary liability, both in their basic form and as developed through application of the DMCA to internet service providers. Moreover, attention is given to the important points at which U.S. copyright law intersects with international intellectual property treaties. Each chapter includes concise summaries and discussions of significant cases, ideal for gaining a complete overview of the doctrine and of the statutory provisions, those that are written with a broad brush as well as those written with painstaking detail. Finally, the book suffuses this doctrinal and statutory analysis with illuminating discussions of the public-policy issues -? from the earliest and most fundamental to those that are at today's cutting edge -- that help inform and shape the development of copyright law.