Clement Greenberg is widely recognized as the most influential and articulate champion of modernism during its American ascendency after World War II, the period largely covered by these highly acclaimed volumes of The Collected Essays and Criticism. Volume 3: Affirmations and Refusals presents Greenberg's writings from the period between 1950 and 1956, while Volume 4: Modernism with a Vengeance gathers essays and criticism of the years 1957 to 1969...