Card to George Herms, 1967, Dean Stockwell. Letterpress, ink, and gelatin silver prints on board. 5 1/4 x 3 9/16 in. The Getty Research Institute, Gift of George Herms, 2009.M.20.17. © Dean Stockwell

Card to George Herms, 1966, Russel Tamblyn. Photomontage and ink board. 4 9/16 x 3 9/16 in. The Getty Research Institute, Gift of George Herms, 2009.M.20.10. © Russel Tamblyn

Cloud Box, 1966, Peter Alexander. Cast polyester resin. 9 5/8 x 9 5/8 x 9 5/8 in. Collection of Janis Horn and Leonard Feldman, Los Angeles. © Peter Alexander. Photo: Brian Forrest

Concord #11, 1964, Ron Miyashiro. Wood, cardboard, papier-mâché, and enamel. 15 x 12 1/2 x 12 ½ in. The Buck Collection, Laguna Beach, California. © Ron Miyashiro. Photo courtesy Cardwell Jimmerson and the artist

Concord #8, 1963, Ron Miyashiro. Wood, cardboard, and enamel. 11 5/8 x 5 7/8 x 6 1/4 in. Collection of Diana Zlotnick. © Ron Miyashiro. Photo courtesy of Cardwell Jimmerson and the artist

Concord #9, 1963, Ron Miyashiro. Wood, cardboard, and acrylic. 10 5/8 x 15 1/16 x 8 1/4 in. Courtesy of the artist and Cardwell Jimmerson. © Ron Miyashiro

Dalton's Waffle #1, 1960, Ed Moses. Crushed newspaper, shellac, and wood. 39 1/2 x 34 3/4 in. Collection of Jim Newman & Jane Ivory. Image courtesy of and © Ed Moses

Poster for Vija Celmins exhibition at David Stuart Galleries in Los Angeles, February 28-March 26, 1966. © Vija Celmins. The Getty Research Institute, Gift of Michael Asher, 2009.M.30.13

Poster for Joe Goode exhibition at Dilexi Gallery in Los Angeles, 1963. The Getty Research Institute, Gift of Michael Asher, 2009.M.30.15. Image courtesy of Jerry McMillan and Craig Krull Gallery, Santa Monica. © Jerry McMillan

Yves Klein exhibition at Dwan Gallery in Los Angeles, 1961. Courtesy Dwan Gallery Archives

Dennis Hopper, Brooke Hayward, Martial Raysse, and Virginia Dwan at Raysse Exhibition, Dwan Gallery, 1967. Courtesy Dwan Gallery Archives

Ed Ruscha in his studio at 1024 3/4 N. Western Avenue in Hollywood, California, 1970. Image courtesy of Billy Al Bengston. Photo © Larry Bell

Poster for Karl Benjamin exhibition at the Esther-Robles Gallery in Los Angeles, 1964. © Karl Benjamin. The Getty Research Institute, Gift of Michael Asher, 2009.M.30.12

Every Building on the Sunset Strip, 1966, Ed Ruscha. Self-published book, offset lithograph, 1966 (second printing 1971). 7 1/8 x 5 3/4 x 3/8 in. Open unfolded: 7 1/8 x 297 in. The Getty Research Institute, 86-B19486.c1. © Ed Ruscha

Felix Landau in his gallery on La Cienega Boulevard in Los Angeles. Photo by Frank J. Thomas. Courtesy of the Frank J. Thomas Archives