Sam Wagstaff, the legendary curator, collector, and patron of the arts, emerges as a cultural visionary in this groundbreaking biography. Even today remembered primarily as the mentor and lover of Robert Mapplethorpe, the once infamous photographer, Wagstaff, in fact, had an incalculable--and largely overlooked--influence on the world of contemporary art and photography, and on the evolution of gay identity in the latter part of the twentieth century...