Have just read Mike Mullane's book Riding Rockets on rec from here. I was
very impressed with his honesty and lack of bull, so much so that I shot him a
quick e mail to say as much without thinking anymore of it. I received a very
nice e-mail back from him from an obviously very busy man, what a gent.
I did exactly the same thing a couple of months ago also. I gave the book a go on the recommendation of this thread, and was so impressed that I felt the need to send him a short email to tell him how highly I thought of his book and to thank him for writing it (the first time I've ever felt the compulsion to do so). Again, I thought nothing of it until I received back a very sincere thank you email from him. Made my day.