The German Submarine War 1914 - 1918
This book was originally published in 1931.
The present book is a Naval & Military Press reprint of a facsimile copy of the original.
The book has a reasonable number of images, plus four very good plans at the beginning.
It is not only German submarines which are covered, the book also deals with Austro-Hungarian and Turkish boats.
There is a Foreword by Admiral of the Fleet Earl Jellicoe.
The book was published in association with the Imperial War Museum.