This is a definitive record of U-boats from 1914-45. Conway rightly enjoys a reputation for publishing carefully researched and comprehensively illustrated navel titles. This is no exception. The text is well supported with black and white photographs, line drawings, and cut-aways. There is also a wealth of information in tables. An excellent book, essential to all those interested in naval history. If you only have space for one book on U-boats, this is the book to buy.