Sound art has long been resistant to its own definition. Emerging from a liminal space between movements of thought and practice in the twentieth century, sound art has often been described in terms of the things that it is understood to have left behind: a space between music, fine art, and performance. The Oxford Handbook of Sound Art surveys the practices, politics, and emerging frameworks of thought that now define this previously amorphous area of study. Throughout the Handbook, artists and thinkers explore the uses of sound in contemporary arts practice. Imbued with global perspectives, chapters are organized in six overarching themes of Space, Time, Things, Fabric, Senses and Relationality. Each theme represents a key area of development in the visual arts and music during the second half of the twentieth century from which sound art emerged. By offering a set of thematic frameworks through which to understand these themes, this Handbook situates constellations of disparate thought and practice into recognized centers of activity.