Susan Sontag, relentlessly curious, roamed widely across the cultural landscape, the specificity of her writing compensating for her occasional lack of specialist knowledge. This jewel-box exhibition, which draws its title from her thin, seminal book first published in 1977, acknowledges her contribution to our understanding of photography by pairing quotes drawn from her essays with clumps of photographs exhumed from the Metropolitan's far-reaching collection. Encompassing portraits, street scenes, war photography, political propaganda, and travel snapshots, the pictures on view—spanning 150 years—interlace anonymous works with canonical images while maintaining an intimate sense of scale. Curator Mia Fineman serves both image and text well by leaving loose the connections between them—allusion should always supersede didacticism—and, in doing so, refreshes our understanding of both. (Those turned off by the playfulness of "AngloMania," on view elsewhere in the museum, should appreciate this exhibition's gentler revisions.) Peter Hujar's cool 1975 portrait of Sontag, which catches her in thoughtful repose, greets the visitor at the entrance; forty-odd pictures later, Annie Liebovitz gives us Sontag as a shadowy, faraway figure, dwarfed by the walls of the ancient city of Petra in Jordan. It's a bit of a trick, but it works, and one leaves this exhibition hoping that Sontag's words won't likewise slip into the distance.