As technological progress marches on, so anxiety over the shape of the public domain is likely to continue if not increase. This collection helps to define the boundaries within which the debate over the shape of law and policy should take place. From historical analysis to discussion of contemporary developments, the importance of the public domain in its cultural and scientific contexts is explored by lawyers, scientists, economists, librarians, journalists and entrepreneurs. The contributions will both deepen and enliven the reader's understanding of the public domain in its many guises, and will also serve to highlight the public domain's key role in innovation. This book will appeal not only to students and researchers coming from a variety of fields, but also to policy-makers in the IP field and those more generally interested in the public domain, as well as those more directly involved in the current movements towards open access, open science and open source.