As a Special Forces soldier, I read just about every book there is on survival. Most are hardly worth the paper they are printed on, and that especially includes the popular "survival" books which tend to contain potentially deadly errors and omissions. The main problem with these "worst case" books and others is that most readers, unfortunately, have no way of knowing what is accurate and what is fantasy. For readers who wish to stick to nonfiction, this book is your best choice.
This is THE definitive guide to survival. There is nothing here to filter out, no political rhetoric, just straight fact and easy-to-understand instructions on how to survive in any wilderness situation. The extended sections on the Arctic were of particular interest to me because I happen to live in that zone. EVERYONE should keep a copy of this in their home, car, and camper!