This document summarizes the differing views of Clement Greenberg and Harold Rosenberg on Abstract Expressionism. Greenberg represented a formalist view that focused on the formal elements of a work like line, color and form. He believed art progressed towards increasing abstraction and purity of form. Rosenberg represented a non-formalist view, emphasizing the meaning and content of a work. He saw the act of painting as more important than the finished product. These divergent views influenced whether art was seen as "art about art" or "art as life" in the 1950s-60s.