"Alfred Stieglitz (1864-1946) was an enormously influential artist and nurturer of artists even though his accomplishments are 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 at age eighteen went to study in Germany, where his father, a wool merchant and painter, insisted he...