"Valley of Darkness" by Thomas R H Havens is a 1978 hardcover textbook focusing on the social science aspect of World War II, specifically exploring the customs and traditions of the Japanese people during this time. Illustrated with a dust jacket, the book is geared towards a college audience interested in military history, providing insight into the challenges faced by the Japanese during the war. With 280 pages, this textbook offers a comprehensive look at the subject area, making it a valuable resource for students and educators alike.