Clyfford Still was a leader in the first generation of Abstract Expressionists who developed a new, powerful approach to painting in the years immediately following World War II. Although not as widely known as some of his New York School contemporaries, Clyfford Still was the first to break through to the new and radically abstract style devoid of obvious subject matter. Still was also considered one of the foremost Color Field painters - his non-figurative paintings are non-objective, and largely concerned with juxtaposing different colors and surfaces in a variety of formations. Still's progression to purely abstract painting in the mid-1940s predated and influenced a similar move to non-representational art by his Abstract Expressionist contemporaries.