The Type VII U-boat was the quintessential U-boat, the one that comes to mind whenever the subject of the Battle of the Atlantic in World War Two is raised. This book describes in detail the technological war fought by and against the Type VII U-boat and is illustrated with a marvellous selection of photographs and line drawings. Interviews with U-boat veterans and access to plentiful naval records have given the author the means to provide a fascinating insight into both life aboard a cramped vessel and the practical methods used both to track and destroy the enemy and to avoid his often fatal searches. As the war turned against Germany, this led to experimentation with technical systems that were often years ahead of their time. With its appendixes on paint schemes, boats built and a profile of Donitz, this is a valuable contribution to the study of the U-boat arm, which will be warmly welcomed by naval enthusiasts.