In the 20th century, art became abstract. Artists of various backgrounds hoped that by detaching from the representational, they could achieve a radical renewal of art. Avant-gardists like Kandinsky, Malevich, Delaunay, Mondrian, and many others found their own unique paths to a new form of art that shook traditional ways of seeing and thinking. This is an introduction to the many variations of abstraction. "I take a color as I bite into an apple or shake hands with a friend." - Emil Schumacher.