"From mashups to fan fiction, the digital age has been a wellspring of creativity that builds on copyrighted works. Drawing on insights from cognitive psychology and creativity studies, Omri Rachum-Twaig articulates a provocative new theory for understanding the rationale for, proper scope of, and remedial framework for copyright law's right to prepare derivative works. Such fundamental rethinking of how society can best promote cumulative creativity deserves serious attention."Professor Peter S. MenellKoret Professor of Law and Director, Berkeley Center for Law & TechnologyUniversity of California at Berkeley School of Law"Copyright Law and Derivative Works offers a novel account of the nature, justification and scope of the derivative work right in copyright law in light of insights about the essence of creativity culled from cognitive psychology and genre theory, thus richly evoking the variegated junctures between critical analysis of copyright doctrine, creativity theory, and the relation between extra-legal theory and specifically legal theory and practice. Worthwhile reading for anyone engaged with copyright law, its justification, and its place and role in broader social and theoretical concerns."Abraham DrassinowerProfessor and Chair in the Legal, Ethical and Cultural Implications of Technological InnovationUniversity of Toronto Faculty of Law