Gotta promote another one of our well known pprune members a bit:
Dennis Kenyon - 'Dangerous Appointment' (is that even published yet?!)
Also a good one not mentioned here yet is Shawn Coyle's 'The Little Book of Autorotations'. I found this book particularly helpful from a flight instructors perspective, it has lots of great information with some top notch explanations that are very easy to understand (and pass on).