This Wydawnictwo Militaria No. 5 book is a must-have for aviation enthusiasts, particularly those interested in the Fokker D XXI. The softcover format makes it a convenient addition to your collection, while the Polish language adds an international flavor. The book covers a range of topics related to the Fokker D XXI, including its history, design, and performance. The author is unknown, but the publisher is a reputable name in the industry. This pre-loved book is in great shape and will make a fantastic addition to your library.