Abenteurer der Lüfte by Alexis Von Croy

ISBN 978 3 492 40596 6

National Geographics at its best: with this 400 page turned covering more than 100 years flying history. Ex chief editor of German’s “Fliegermagazin” and “Planet Aerospace” von Coy collected 14 stories of pilots, planes and technical development, background stories, research and personal notes from interviews.

Unfortunately just available in German-but still a must read if you understand the language at least a bit!