During advanced flying training on the Varsity, my instructor loaned me a copy of Fate is the Hunter and told me that to pass the course I had to read it. (There were other criteria for passing as well!) Many of Ernest K Gann's memoires had lessons that were relevant to all aviators and are still applicable today - a brilliant and well written book. I challenge anybody connected with aviation to put the book down part way through the chapter where he describes picking up icing whilst flying the mail.