This milestone volume maps fifty years of artists¿ engagement with sound. Since the beginning of the new millennium, numerous historical and critical works have established Sound Art as an artistic genre in its own right, with an accepted genealogy that begins with Futurism, Dada, and Fluxus, as well as disciplinary classifications that effectively restrict artistic practice to particular tools and venues. This book, companion volume to a massive 2012-2013 exhibition at ZKM | Center for Art and Media, Karlsruhe, goes beyond these established disciplinary divides to chart the evolution and the full potential of sound as a medium of art.