The document discusses psychedelic art of the 1960s. It was born within the hippie subculture in San Francisco and was inspired by psychedelic drug experiences. Key characteristics included bright contrasting colors, optical effects, curvilinear shapes, illegible text, and collage techniques. Notable psychedelic artists mentioned include Victor Moscoso, Wes Wilson, Heinz Edelmann, Marijke Koger, and Keiichi Tanami. They created concert posters and album covers for bands like the Grateful Dead, Jefferson Airplane, and The Beatles. By the early 1970s, psychedelic art had been commercialized and co-opted by mainstream advertising.