Andy Warhol is a famous American artist and was one of the founders of the "Pop Art" movement in the 1960s. He was a successful commercial artist in the 1950s and began focusing on painting images of mass-produced commercial goods, such as the Campbell soup cans. As part of his creative process, Warhol took Polaroid photographs that he used for painting his famously colorful portraits of celebrities. "My idea of a good picture is one that's in focus and of a famous person" - Andy Warhol.