Bonnie Yochelson was curator of prints and photographs at the Museum of the City of New York and teaches in the MFA Photography, Video, and Related Media Department at the School of Visual Arts in Manhattan. She is the author, most recently, of Alfred Stieglitz New York. Daniel Czitrom is professor of history at Mount Holyoke College, the author of Media and the American Mind, and coauthor of Out of Many.