Orpen. Mirror to an Age. London: Jonathan Cape, 1981, First Edition. Pp, 448. Illustrated throughout with photographs. Very good copy in d.j. William Orpen was the last of the great society portarit painters, succeeding Sargeant and becoming in his turn, the most successful artist of his day. ‘A handful of his paintings are among the great and original works of art of this century’ writes Bruce Arnold.