Ernest Benn Limited’s Sixpenny Library is a complete series of reference books published in the late 1920s and early 1930s. The library included over one hundred and eighty volumes. The series was edited by , who solicited current authorities in such areas as history, literature, religion, psychology, science, and economics. Some contributing authors were Hilaire Belloc, Maurice Baring, J.B. Priestley, Sir (later Lord) Robert Baden-Powell, Sir Oliver Lodge, S.V. Keeling and Sir Ernest Benn himself. The Spectator, in November 1927, after announcing some of the latest additions to "Messrs Benn's excellent Sixpenny Library" devoted a further paragraph to his contribution on Trade (both of which are free to read online). Partial lists of the books published in the series can be found here and