This is a book for fans of cutaway drawings. Labeled and detailed, the drawings of the various bombers in this work stop just short of reference-level. Bill Gunston himself was a pilot in WWII for the British Royal Air Force. After a career as an instructor following the conflict, he became an exhaustive historian and author for the aircraft of his tenure and others. This book spans one of the greatest swathes of any of his work, showing the evolution of the Bomber as an aircraft in great detail. This book is in very good condition. The cover has its flaws from years on the shelf, but the book itself has a strong spine, no missing or damaged pages, and the phenomenal drawings are free from distracting stains.