Book excerpt: The Transreal: Political Aesthetics of Crossing Realities explores the use of multiple simultaneous realities as a medium in contemporary art, including mixed reality, augmented reality and alternate reality approaches. Building on the notion of "trans" from transgender, signifying the crossing of boundaries, the book proposes that transreal aesthetics cross the boundaries created by a proliferation of conceptions of reality that occurred as a result of postmodern theory and emerging technologies.