“The Russian artist El Lissitzky (1890-1941) was one of the great avant-garde figures of the early twentieth century. The Getty Research Institute holds a remarkable array of materials on Lissitzky, including book and periodical designs, his complete correspondence to his wife, Sophie Lissitzky-Küppers, photographs of his exhibition designs, his two personal address books, and additional manuscripts related to his life and work.” The Flash version appears to be super-lame so try the html version if you want to learn anything.