Berenice Abbott is to American photography as Georgia O'Keeffe is to painting or Willa Cather to letters. She was a photographer of astounding innovation and artistry, a pioneer in both her personal and professional life. Abbott's sixty-year career established her not only as a master of American photography, but also as a teacher, writer, archivist, and inventor. Famously reticent in public, Abbott's fascinating life has long remained a mystery--until...