This is a hard cover book complete with a dust jacket. It measures 9″ x 11″ x 1.” The book was published in 1999. It is broken down into four parts covering the air war: 1914-1915, 1916-1916, 1917, and 1918. It tells the story of the men, the machines, and particularly the technical changes/advancements as the war progressed. The photographs and color illustrations are well done, making it useful for any library.