Exhibition catalogue published in conjunction with "Projekt '74" held at the Wallraf-Richartz-Museum, Köln, Germany, October 19 - October 24, 1974. Curated by Paul Maenz. Artists include Art & Language, David Askevold, Robert Barry, Mark Boyle, Victor Burgin, Hans-Peter Feldmann, Hans Haacke, Joseph Kosuth, Giulio Paolini, Giuseppe Penone, Anne & Patrick Poirier, Ulrich Rückriem, Salvo. Hans Haacke's piece was not allowed to be included in the exhibition because it implicated a board member of the museum as having engaged in unethical behavior.