Andy Warhol‘s art is inseparable from photography. One of the pioneers of the Pop art movement of the 1960s, Warhol initially appropriated photographic images from advertising and photojournalism as the starting point for his celebrated silkscreen paintings. Later, his own photographs captured the faces of the rich and famous, the glittering New York disco scene, and glimpses of his world travels. The camera became his constant companion, serving as a combination sketchbook and diary. At the time of his death in 1987, Warhol left behind an archive of more than 60,000 snapshots and Polaroids.