Exhibition catalogue published in conjunction with show held February 18 - April 8, 1990. Texts by Werner Lippert and Erich Franz. Artists include Vito Acconci, Carl Andre, Giovanni Anselmo, John Baldessari, Robert Barry, Bernhard and Hilla Becher, Rolf Bendgens, Ella Bergmann-Michel, Mel Bochner, Constantin Brancusi, Marcel Broodthaers, Stanley Brouwn, Daniel Buren, Victor Burgin, Alan Charlton, Hanne Darboven, Jan Dibbets, Marcel Duchamp, Dan Flavin, Hamish Fulton, Gilbert & George, Dan Graham, Douglas Huebler, Donald Judd, On Kawara, Joseph Kosuth, Jannis Kounellis, Gary Kuehn, Barry Le Va, Sol LeWitt, El Lissitzky, Bernd Lohaus, Richard Long, Robert Mangold, Piero Manzoni, Brice Marden, Gordon Matta-Clark, Bruce McLean, and Mario Merz. Includes artists' biographies, glossary, bibliography, and index. Text in German.