Paul Strand (1890-1976) was introduced to Alfred Stieglitz, the 291 gallery, and the works of the Photo-Secessionists in 1907 by his teacher Lewis H. Hine. Beginning in 1911 with a pictorialist style, Strand later turned to an objective and increasingly abstract photographic vision in the style of straight photography. His preferred subjects were still lifes, city scenes, and social portraits. In 1917 the journal Camera Work devoted its final issue to Strand. In collaboration with Charles Sheeler, Strand made the experimental short film Manhatta in 1921. He spent the following years traveling around the Soviet Union, Mexico, and Europe as a cameraman and photographer.