# 8, 1966, John McLaughlin. Oil on canvas. 48 x 60 in. The Marilynn and Carl Thoma Collection. Image courtesy of Greenberg Van Doren Gallery, New York

#18–1961, 1961, John McLaughlin. Oil on canvas. 48 x 60 in. Private Collection

100 Boots, 1971–73, Eleanor Antin. Halftone reproductions on 51 cards. 4 ½ x 7 in. each. The Getty Research Institute, 2011.M.23, 2006.M.24, 890164, and 2009.M.5 (Gift of Hal Glicksman). © Eleanor Antin. Courtesy Ronald Feldman Fine Arts, New York

24 Pieces, 1970, Allen Ruppersberg. Spiral-bound offset lithograph. Self-published book. 6 1/4 x 8 1/4 in. The Getty Research Institute, 89-B22093.c1. © Allen Ruppersberg

Shoot performance at F-Space Gallery in Santa Ana, California, 1971, Chris Burden. Gelatin silver print documenting the event by Alfred Lutjeans. 9 15/16 x 7 15/16 in. The Getty Research Institute, Gift of Art in the Public Interest and 18th Street Arts Center, 2006.M.8.41. © Chris Burden

A Gourmet Experience, 1974, Martha Rosler. Gelatin silver print. 10 1/16 x 7 15/16 in. The Getty Research Institute, Long Beach Museum of Art Video Archive, 2006.M.7.26 © Martha Rosler

Audio: Frederick Hammersley speaks about his work, February 2003

Ablutions performance at Guy Dill’s studio, with Judy Chicago, Suzanne Lacy, Sandra Orgel, and Aviva Rahmani (Sponsored by Feminist Art Program at CalArts), 1972. The Getty Research Institute, Gift of Art in the Public Interest and 18th Street Arts Center, 2006.M.8.42. Photo courtesy Lloyd Hamrol

Al's Grand Hotel catalog, 1971, Allen Ruppersberg. Offset lithograph. 9 x 6 x 1/16 in. The Getty Research Institute, 94-B15837. © Allen Ruppersberg

American Beauty, 1965, Ed Bereal. Metal, paint, tree branch. 50 x 31 x 12 in. Collection of Betty & Monte Factor. © Ed Bereal. Photo by Larry Hirshowitz

Automotive Landscapes #5: Los Angeles, 1978, Anthony Hernandez. Gelatin silver print. 11 3/4 x 17 1/8 in. Purchased in part with funds provided by the Photographs Council of the J. Paul Getty Museum. © Anthony Hernandez

Avocado Mountain, 1959, Ken Price. Glazed ceramics (2 parts). 24 x 21 x 21 in. James Corcoran Gallery, Los Angeles. Permission courtesy Ken Price Studio

Backyard, Diamond Bar, California, 1980, Joe Deal. Gelatin silver print. 11 3/16 x 11 5/16 in. © Joe Deal

Backyard, Diamond Bar, California, 1980, Joe Deal. Gelatin silver print. 11 3/16 x 11 1/4 in. © Joe Deal

BG Red, 1963, Ken Price. Fired clay with acrylic and lacquer on wooden base. 10 in. high. Collection of Mr. & Mrs. Gifford Phillips. Permission courtesy Ken Price Studio. Photo by Taylor Sherill