Minimalism is an extreme form of abstract art developed in the late 1950s in the United States. Minimalist artists expose the essential identity of a subject by eliminating all non-essential forms, features, or concepts. Characteristics of Minimalism include the repetition of simple geometric forms and either a monochromatic or a limited color palette with precise transitions between areas of color. Notable artists and key artworks that define the Minimalist art movement include Yves Klein's 'Blue Disk,' Frank Stella's 'Black Paintings' series, and Barnett Newman's 'Who's Afraid of Red and Yellow.' Minimalist art is a bold addition to any modern art collection.