Abstract Expressionism was an American post-WWII art movement centered in New York City that focused on spontaneous, raw expression and large canvases to depict inner emotions and the subconscious. Key artists included Jackson Pollock, known for his drip paintings; Willem de Kooning who used gestural abstraction; and Mark Rothko whose color field paintings conveyed transcendental experiences through large areas of color without subjects. The movement sought to express universal feelings through new techniques arising from surrealism, abstractionism, and the influences of the Depression and World War II.