For Paul Strand, the great pioneer of Modernism, the summers of 1926 and 1930-1932 were a return to experimentation and periods of great artistic growth. He worked in makeshift darkrooms--one in a hotel basement and another above the Taos movie theater. The Southwest period brought not only artistic renewal, but also personal turmoil. His political and social ideas were shifting, and his relationship with the two most important people in his life--his...