Harry Callahan (1912-1999) was one of American photography's great innovators. During a career that spanned six decades, Callahan pursued an individual and experimental approach and investigated a wide range of themes, techniques, and materials. Yet he cherished no photographs more than the images of his wife, Eleanor, which form an intimate visual diary of a lifestyle and a relationship. This is the definitive publication of Callahan's photographs of Eleanor. For almost two decades from the early 1940s to the early 1960s, Callahan photographed his wife in countless ways; nude and clothed, indoors and outdoors, in public parks and city streets, at the beach, in a tent, in the woods, among sand dunes, and in the privacy of the family home. Reproducing many previously unpublished images, Harry Callahan: Eleanor offers an in-depth presentation of a single subject over many years, providing a new understanding of Eleanor as a subject and Callahan's lifelong exploration of the creative potential of photography.