Untitled pastel on paper signed and dated 12 in upper left. His art reflects a psychological exploration of human nature, and his works are found in major collections around the world, including the Museum of Modern Art, New York; the Guggenheim Museum and the Whitney Museum of American Art, New York; the Ludwig Museum in Germany and permanent collections worldwide. The overall size is 16 1/2 x 20 1/2 in. and the sight size is 11 x 14 in.
