Modern American female artist, born in Sun Prairie, Wisconsin, USA, graduated from the Art Institute of Chicago, she is listed as one of the art masters in 20th century. O'Keeffe's paintings have become a classic representative of American art in the 1920s. She is famous for her semi-abstract and semi-realistic techniques. Her works use only a few colors and the form of expression is simple; the style is obvious and bold, and subjects are mostly zoomed in flowers, animals bones, desolate American desert landscape, etc.