Here is a must and perfect gift for any Military pilot young and old. These books are published by the well known Squadron /Signal Publications and they are extremely in depth in every subject they do. This series is about Military planes of all kinds. This is a set of 7 and includes the following plane designations: F4U-Corsair, Hawker Hunter, B-17 Flying Fortress, MiG-21 Fishbed, USAF Europe, UH-1 Huey and the f-100 Super Sabre. All books were well kept by a collector and other then display wear are in fantastic shape and are gift worthy. If you have questions please ask.