OK, time to come clean. I'm a terrible sim pilot :-). I want to go over the flying lessons in FS again, but I thought it might also be helpful to have a good book to use as a reference. I mean a real-world flying book. Can anybody recommend some good ones? Rod Machado's looks pretty good. I think I can stand the corny humor (the main complaint in the Amazon reviews). If you could only have one book, what would it be?

thanks!
cmh