Clockwise from top left: Lorna Simpson (Chuck Close, 2006); Keith Calhoun (image via Open Society Institute); Chandra McCormick (image via Open Society Insitute); Carrie Mae Weems, self-portrait, “I looked and looked and failed to see what so terrified you,” from her multimedia installation The Lousiana Project; Dawoud Bey, self-portrait; Deborah Willis (image via duke.edu); Hank Willis Thomas, portrait by Rashid Johnson.