The 20th Century Collection, because it contains books which were published 1900-1999, is multi-disciplinary in its subject coverage. Literature is represented in the works of such authors as Siegfried Sassoon, T.S. Eliot, W.H. Auden, Jon Silkin and Robert Graves. There is local history, in the form of Jackson, G. The Boer War and the Liberal Party in Newcastle and Gateshead (1998); Willis, P. Capability Brown in Northumberland (1983) and Pawson, H.C. Cockle Park Farm: an account of the work of the Cockle Park Experimental Station from 1896-1956 (1960). Whilst there are some items relating to World War I, there is a significant amount of material relating to World War II - published 1939-1943, often by Penguin (or the Pelican imprint) in the iconic early paperback series. This material includes E.O. Lorimer's What Hitler Wants [1939] - a Penguin Special which achieved record-breaking sales, as well as F. Lafitte, The internment of aliens (1940) and Glover, E. The psychology of fear and courage (1940).