Alfred Stieglitz (1864-1946) was an enormously influential artist and nurturer of artists even though his career is often overshadowed by his role as Georgia O'Keeffe's husband. This new book from celebrated biographer Phyllis Rose reconsiders Stieglitz as a revolutionary force in the history of American art. Born in New Jersey, Stieglitz later studied in Germany, where his father, a wool merchant and painter, insisted he would get a proper education....