Klaus Kertess

Klaus Kertess (born July 16, 1940, Manhattan, New York, USA - died October 8, 2016, Manhattan, New York, USA) was an American contemporary art dealer who ran the Bykert Gallery along with Jeffrey Byers from 1966 to 1975. Kertess was a supporter of Philip Glass and founded Chatham Square Productions with him. Later in life he turned his attention to curating and writing.