13. Robert Rauschenberg on "Erased de Kooning" This piece was one of Rauschenberg's most controversial. It raised many fundamental questions about the nature of art. The viewer was challenged to consider whether erasing another artist's work could be a creative act, as well as whether the work was only "art" because Rauschenberg was responsible.
20. Roy Lichtenstein, who's use of comic strips in art followed Rauschenberg's by 10 years, acknowledged the latter's influence on him, and on pop art in general. “The coke bottles he put into his art, the happenings and environments, all the things in which he was involved, brought up a raw, strictly American material .. merchandise as merchandise. Art became American rather than European. The Sixties, Seventies and Eighties were all influenced by that work”.