Tauba Auerbach, Uutitled Fold. On view at Paula Cooper, New York, through June 9. 

Bill Bollinger, Graphite Piece, 1969 (2012). On view at Sculpture Center through July 30. 

Wade Guyton and Josh Smith Installation views of The Painting Factory: Abstraction After Warhol, on view now at MOCA Grand Avenue. Photos by Brian Forrest. On view through Aug. 20. 

Christopher Wool, Untitled, 2001. On view at the Musée d'Art Moderne, Paris, through Aug. 12.