The document discusses Abstract Expressionism, an art movement that began in the 1940s in New York City. It involved spontaneous and emotional painting styles like action painting and color field painting. Key artists included Jackson Pollock, Willem de Kooning, Lee Krasner, and Mark Rothko. They reacted against traditional art and sought to directly express inner emotions, often dealing with trauma from World War II. Though critics were initially hesitant, it came to influence many later art movements.