Small, profusely illustrated book featuring color and black-and-white reproductions of works by artists including Wolf Vostell, Joseph Beuys, Arthur Köpcke, Allan Kaprow, Dick Higgins, Nam June Paik, Emmett Williams, Stanley Brouwn, Tomas Schmit, Roy Lichtenstein, Claes Oldenburg, Jim Dine, George Segal, Andy Warhol, Tom Wesselmann, Robert Indiana, James Rosenquist, Jasper Johns, Robert Rauschenberg, Jean Tinguely, Yves Klein, Arman, Christo, César, Daniel Spoerri, Edward Kienholz, Mel Ramos, Dieter Rot, Winfred Gaul, Horst Richter [aka Gerhard Richter], Hansjoachim Dietrich. Limited texts in German, with some writings by artists in English.