This abstraction, supported by influential art critics, is opposed to American realism, which developed parallel to it. (maryboonegallery.com)
He therefore becomes one of the most influential arts critics in the Western contemporary arts world. (biennialfoundation.org)
He first came to attention in 1960 when his work was included in an exhibition at the Los Angeles County Museum of Art, curated by influential art critic Clement Greenberg. (lamodern.com)