The British artist and sculptor Eric Gill designed the jacket for the Twentieth Century Library issue of his book about Art and civilization. Of his design, Gill said: 'I can think of nothing more appropriate for a symbol for the Twentieth Century Library than a version of Laocoon, that is Man, fighting with the twin snakes of War and Usury. These are the powers of evil with which man in the twentieth century will have to settle, or perish.' Readers are left to judge the effectiveness of Gill 's work.