Georgia O'Keeffe is widely revered as the "Mother of American Modernism" and the greatest woman artist of the 20th century. In the 1920s, O'Keeffe became famous for her paintings of flowers, bones, and the beauty of nature. She posed nude for shocking photographers by her lover, Alfred Stieglitz, but denied that her paintings depicted sexual imagery. In the 1970s, living in her beloved New Mexico, she emerged as an iconic role model for American women.