Photography Theory presents forty of the world's most active art historians and theorists, including Victor Burgin, Joel Snyder, Rosalind Krauss, Alan Trachtenberg, Geoffrey Batchen, Carol Squiers, Margaret Iversen and Abigail Solomon-Godeau in animated debate on the nature of photography. Photography has been around for nearly two centuries, but we are no closer to understanding what it is. For some people, a photograph is an optically...