In "No Caption Needed," Robert Hariman and John Louis Lucaites provide the definitive study of the iconic photograph as a dynamic form of public art. Their critical analyses of nine individual icons explore the photographs themselves and their subsequent circulation through an astonishing array of media, including stamps, posters, billboards, editorial cartoons, TV shows, Web pages, tattoos, and more. Iconic images are revealed as models of visual eloquence, signposts for collective memory, means of persuasion across the political spectrum, and a crucial resource for critical...