Book excerpt: John Ellis’ World War I Databook provides an expert, uniquely comprehensive source of information on all areas of the conflict. This remarkable reference book covers the western and eastern fronts, Italy, the Middle East, and Africa; details the forces deployed by all sides at key periods; shows the organization, manning, and equipment of representative units; includes statistics on the military forces deployed and casualties and losses; and lists the characteristics of the weaponry, aircraft, tanks, and ships. For students, researchers, and all interested in the history of World War I, this exhaustively researched volume will be invaluable.