I'm about 1/3 of the way through Cody Lundin's book but it's far enough that I can give it a 110% recommendation. This is a very sophisticated and well researched book by a very knowledgeable person. My field of study is comparative physiology and Lundin has impressed me with his knowledge of thermal physiology. This is not just a book on pitching a tarp or sharpening a knife. There's a lot of info in it about psychology and physiology in relation to survival. But like I said, I'm ony 1/3 way through it. Got lots more to read. :-D
http://www.amazon.co.uk/exec/obidos/ASIN/1586852345/qid=1069897381/026-6260011-2782848
http://www.amazon.co.uk/exec/obidos/ASIN/1586852345/qid=1069897381/026-6260011-2782848