Exhibition catalogue published in conjunction with show held at the Städtische Galerie, Rosenheim, Germany, September 4 - October 12, 1977. Artists include Robert Barry, Heinz Gappmayr, Pierre Garnier, John Giorno, Eugen Gomringer, Allan Kaprow, Robert Lax, Ann Noël, Gerhard Rühm, K.B. Schäuffelen, Jiri Valoch, Herman de Vries, Lawrence Weiner, and Emmett Williams. Includes artists' biographies. Illustrated in color and black-and-white. Text in German.