"U-Boat War" by Lothar-Gunther Buchheim, published by Collins in 1978, is a non-fiction history book that delves into the wartime actions of German U-boats during World War II. 

The hardcover edition features illustrations and a dust jacket, making it a visually engaging read for adult audiences interested in military history. 

Buchheim's detailed narrative provides a compelling insight into the tactics and strategies used by the U-boats, offering a unique perspective on the war at sea.