The "SAS Survival Handbook" is the most comprehensive survival handbook I have ever seen. Most books have some basic advice (the importance of the correct mental attitude, finding water and shelter, etc.), a handful of edible plants, and a couple of ways to start a fire. While this book covers all those areas, it also has sections on camp craft, determining directions, rescue signals, dealing with different climates and terrains, reading clouds for weather prediction, and many others. A good example of the thoroughness of the coverage would be the food section. It covers your energy needs and how they are met from various foods, testing unknown plants in desperate situations, plants to avoid, identification of plants, using animals for food, extensive and detailed trapping mechanisms, fishing, gutting and cleaning, and other advice. The number, types, and detail on the various traps are amazing. I've never seen so many different designs. It includes several that I have not seen anywhere else before. I would consider this the authoritative text on survival skills in the wild and give it the highest recommendation for anyone interested in survival techniques.