Handling the big jets was my bible when I got into jet aircraft. It explained a lot of things that no other aviation manual could. Especially high altitude aerodynamics. Thank god for books like that to learn what you should know as an airline pilot. The airlines won't teach you. I have had our check airmen tell me BS that if they had read that book they would not have said. They do not understand how a lot of things work. I was encouraged to be a check airman once but did not want to be concerned about anybody's cockpit but mine. Fishing on my days off with no concerns about anybody elses flight really appealed to me.