The influence of the artist Kazimir Malevich was colossal from the start. Following his "Black Square" painting of 1915 and his formulation of Suprematism (defined as "an altogether new and direct form of representation of the world of feeling"), Malevich transmitted his ideas through his roving advocate El Lissitzky, whose Proun works prompted Kurt Schwitters' Merzbau, which itself fulfilled Malevich's aspiration for Suprematism that painterly...