Cubism was a highly influential early 20th century avant-garde art movement that revolutionized European painting and sculpture. Led by Pablo Picasso and Georges Braque, Cubism involved analyzing subject matter into geometrical shapes and reconstructing objects from different viewpoints to represent three-dimensional forms on a two-dimensional surface. Cubist works depicted objects from multiple perspectives to represent their essence rather than physical reality. There were two phases - Analytic Cubism used monochrome colors to break objects down while Synthetic Cubism reassembled fragmented objects with bright colors and collage materials. Cubism had a radical impact and influenced many subsequent art movements.