B0014U1MS4 Trade paperback, 127 pages, Very little visible wear, but still slightly used, the cover does not lie flat, but opens 3/4 inch on a flat surface. Features articles on history of aviation and test pilots and article on the SR-71 Blackbird and Kelly Johnson's Skunk Works. No markings or writing on any of the pages during cursory exam. Illustrated with some black and white photos and some PowerPoint slides for the SR-71 article. This is a rare copy suitable for aviation fans or actual test pilots. This appears to be a handout from the actual symposium. Usually ships with delivery confirmation.