The exhibition Modern Masters from the Smithsonian American Art Museum features 43 key paintings and sculptures by 31 of the most celebrated artists who came to maturity in the 1950s. Modern Masters examines the complex and varied nature of American abstract art in the mid-20th century through three broadly conceived themes that span two decades of creative genius - "Significant Gestures," "Optics and Order" and "New Images of Man." The exhibition features works by noted artists such as Sam Francis, Philip Guston, Hans Hofmann, Franz Kline, Josef Albers, Ad Reinhardt, Romare Bearden and Jim Dine.