U-Boats: The Illustrated History of the Raiders of the Deep

U-Boat 1936-45 (Type VIIA, B, C and Type VIIC/41): An insight into the design, construction and operation of the most feared German U-boat of World War 2 (Owners' Workshop Manual)

Kriegsmarine U-Boats 1939-45 (Essential Identification Guide)

The German Navy at War: Vol. II The U-Boat (German Navy at War, 1935-1945)

Type 7 U-Boats

Shipcraft 4 - Type VII U-Boats

Type VII: Germany's Most Successful U-Boats

U-Boats in Action - Warships No. 1

US Submarines 1941–45 (New Vanguard)

Hitler's U-Boat War: The Hunted: 1942-1945