Copyright reflects far more than economic interests. Embedded within conflicts over royalties and infringement are cultural values—about race, class, access, ownership, free speech, and democracy—which influence how rights are determined and enforced. Questions of legitimacy—of what constitutes “intellectual property” or “fair use,” and of how to locate a precise moment of cultural creation—have become enormously complicated in recent years, as advances in technology have exponentially increased the speed of cultural reproduction and dissemination.In Copyrights and Copywrongs, Siva Vaidhyanathan tracks the history of American copyright law through the 20th century, from Mark Twain’s vehement exhortations for “thick” copyright protection, to recent lawsuits regarding sampling in rap music and the “digital moment,” exemplified by the rise of Napster and MP3 technology.