Susan Sontag was an essayist, critic, novelist, and activist. She was also wonderfully photogenic— that strong jaw, that dark hair, that lean self-containment—which certainly helped grow her stature as a public intellectual in anti-intellectual America. Photography as an act and an art was important to Sontag’s thinking. Her most widely read book was On Photography (1977), and her last book, Regarding the Pain of Others (2004), was also about photography. (One of her longest love affairs was with the celebrity photographer Annie Leibovitz.) This exhibition looks at Sontag’s relationship with visual media. “Film is life,” she wrote, “photography is a memento mori.” —Laura Jacobs