Exhibition catalogue published in conjunction with show held January 12 - February 27, 2021. Edited and with an essay by Dieter Schwarz. With additional texts by Samuel J. Wagstaff Jr. and Harold Rosenberg. Artists include John Baldessari, Jennifer Bartlett, Joseph Beuys, Marcel Broodthaers, Christo, Jan Dibbets, Dan Flavin, Dan Graham, Philip Guston, Richard Hamilton, Douglas Huebler, Donald Judd, Allan Kaprow, Joseph Kosuth, Sol LeWitt, Roy Lichtenstein, Richard Long, Brice Marden, Robert Morris, Bruce Nauman, Barnett Newman, Claes Oldenburg, Robert Rauschenberg, Ed Ruscha, Fred Sandback, Richard Long, Richard Tuttle, Andy Warhol, Lawrence Weiner, Hannah Wilke and many others. Includes a complete catalogue of the editions: 1965-1992, an artists and portfolio index and a selected bibliography.