"I have Social Disease. I have to go out every night. If I stay home one night I start spreading rumors to my dogs. "-Andy Warhol

Nat Finkelstein documented "The Factory" for 3 years (1964-1967). years in which he gave us an inside glimpse into Andy Warhol's world. By being constantly in the factory, he was able to take photographs that have a sense of ease and intimacy.
Here are just some of his shots...