This volume shows how, since 1950, the growth of copyright regulation has followed, and enabled, the extraordinary economic growth of the entertainment, broadcasting, software and communications industries. It reproduces articles written by an extensive list of leading thinkers. US scholars represented in readings include James Boyle, Lawrence Lessig, Pamela Samuelson, Mark Lemley, Alfred Yen, Julie Cohen, Peter Jaszi and Eben Moglen. Leading non-US contributors include Alan Story, Brian Fitzgerald and Peter Drahos. These and other authors explain copyright origins, the development of the law, the theory of enclosure, international trends, recent developments, and current and future directions. Today, the copyright system is often portrayed as an engine of growth, and effective regulation as a predictor of economic development. However, critics see dangers in the expansion of intellectual property rights. The articles in this volume focus principally on the digital age, examining how copyright regulation is likely to affect goals of dissemination and access.