Andy Warhol was an influential American artist known for his pop art. Some key facts about Warhol include: 1) He had unique techniques for some paintings, like using copper paint oxidized with urine. 2) He was an obsessive collector of various everyday items and even a mummified human foot. 3) Warhol had a serious foot fetish and disliked eating out at restaurants. 4) His artwork included religious-themed pieces like a glow-in-the-dark version of The Last Supper. 5) Famous people like the Rolling Stones and Elizabeth Taylor rented his estate in Montauk. 6) Warhol was an early adopter of recording devices