Richard Alden "Rick" Griffin (June 18, 1944 – August 18, 1991) was an American artist and one of the leading designers of psychedelic posters in the 1960s. He was a key figure in the underground comix movement as a fouding member of the Zap Comix collective. Griffin was closely identified with the Grateful Dead, designing some of their best-known posters and album covers including Aoxomoxoa. His work within the surfing subculture included both film posters and his comic strip, Murphy. Wikipedia
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