This catalogue includes a large number of ephemeral visual/verbal announcements and photographic documentation of happenings. There are several brief essays by artists, poets, and collectors celebrating the life of Hansen who died in 1995. Wikepedia: Alfred Earl "Al" Hansen (5 October 1927 -- 22 June 1995) was an American artist considered as one of the most important Fluxus figures. He was a Norwegian American. Born in New York City, he was a member of the Fluxus art movement and friend to Yoko Ono and John Cage. While serving in Germany in World War II Hansen pushed a piano off the roof of a five story building. This act became the foundation of one of his most recognized performance pieces, the Yoko Ono Piano Drop and inspired artists like Nam June Paik. Hansen was a frequent visitor to The Factory, Andy Warhol's studio in New York. Hansen also studied with and worked with the composer John Cage at the New School for Social Research in New York City. Hansen was perhaps best known for his performance pieces, his participation in Happenings, and for his collages in which he often used cigarette butts and candy bar wrappers as the raw materials, among them numerous variations of a sculpture referring the Venus of Willendorf. He wrote an important book about performance art, A Primer of Happenings and Time Space Art published by Something Else Press in 1965. In 1977 Hansen managed Los Angeles punk bands the Controllers and the Screamers in Hollywood. In the 1980s Hansen moved to Cologne, Germany where he established an art school, the Ultimate Akademie. Inspired among others by the Final Academy of Genesis P-Orridge it became a meeting point for local and international performers of the time based arts. He died in Cologne, Germany in 1995, with a number of friends celebrating a fluxus funeral according to his plan. He was most famous artistically for his Hershey chocolate bar collages. Al Hansen was the father of Andy Warhol protege Bibbe Hansen and the grandfather and artistic mentor of rock musician Beck and artist Channing Hansen. The small ink drawing of a happy, weird creature that was accompamying this book was done by Bibbe Hansen. -- Source of annotation: Marvin or Ruth Sackner.