Lucian Freud is widely regarded as one of the greatest living artists, and drawing is fundamental to his development as an artist and to how he sees. Speaking recently about his early years he claimed, "I would have thought I did 200 drawings to every painting in those early days. I very much prided myself on my drawing." Drawing became an important part of Freud’s life from the start and a famous sketchbook, The Freud-Schuster Book, has survived dating back to January 1940, when Freud was in Snowdonia with Stephen Spender, as do sketches from Freud’s life as a merchant seaman on a cargo vessel in the Atlantic in 1941. His then surreal style lent itself to illustrations and his fascination with animals, birds, and fish was revealed in the famous line drawings he produced for Nicholas Moore’s book of poems, The Glass Tower (1944)...