I recently picked up:
THE ENCYCLOPEDIA OF OUTDOOR SURVIVAL
Based on the Training and Techniques of the SAS
by Barry Davies BEM (I don't know what BEM means)

ISBN 1-930983-19-0

I found it at my local Half-Price Books.

The book starts out with a "Survival Essentials - Aids and Techniques" with sections in Basic Equipment, Medical Priorities, Survival Medicine, Shelter, Fire, Water, Food, Navigation, Travel, and Rescue. After this there are sections regarding Arctic, Desert, Jungle, Sea and Coasline, and Military.

The book is well written and lots of good pictures ( we all love pic's!) I picked up a few tidbits about navigation that I didn't know.

The back cover says Barry Davies served with the SAS for 18 years and became an expert in the art of survival. The SAS sent him to International Long Range Patrol School in Germany as the senior survival instructor.