Georgia O'Keeffe (1887-1986), one of the most significant artists of the twentieth century, was a painter who took an independent and visionary road. Her paintings evoke varied interpretations yet maintain their beauty and simplicity. O'Keeffe's life is woven together with that of her husband, photographer Alfred Stieglitz. Often living apart, they exchanged letters amounting to over 25,000 pieces of paper. He took hundreds of elegant pictures of...