The majority of these 150 or so prints are little known, so some will certainly come as eye-openers. Jackson Pollock’s 1935-36 Stacking Hay, for instance, is an almost naive depiction of a rural farm scene. Under the influence of his teacher, the regionalist Thomas Hart Benton, Pollock experimented with lithographs of the American Midwest. Later abstract expressionist prints by Pollock are also featured but it is the often unexpected encounter that makes this such a joy, as well, of course, as the pleasure of encountering so many less familiar artists.