HOWL, eon (I, II), by Julie Mehretu, is an ink-and-acrylic diptych on canvas. The work is on display in the Haas, Jr. Atrium at the San Francisco Museum of Modern Art. The award-winning Mehretu is known worldwide for her unique way of combining layered imagery and paint with a powerful social message. The work was inspired by 1950's San Francisco and uses digital images of contemporary riots and protests that are overlayed with paint. Explore this masterpiece further with Neal Benezra, the Helen and Charles Schwab Director of SFMOMA.