Issue edited by Philip Leider. Essays "Robert Motherwell's New Paintings," by Rosalind Krauss; "Computer Sculpture," by Robert Mallary; "In Terms of Color: Jack Bush," by Terry Fenton; "Marsden Hartley," by Peter Plagens; "On Being Sculpture," by Jack Burnham; "Problems of Criticism VI: The Politics of Art, Part III," by Barbara Rose; "An Interview with Dewain Valentine," by Kurt von Meier; "New York Seen," by Fernand Leger; "Books: Two Views of Jack Burnham's Beyond Modern Sculpture," by Albert Elsen and Darby Bannard; "Film," by Manny Farber. Reviews by Jerrold Lanes, Robert Pincus-Witten, Emily Wasserman, Palmer D. French, Albert Elsen, Walter Darby Bannard. Cover: Robert Motherwell. Includes half page ad for Carl Andre exhibit at Dwan Gallery.