It doesn't take a genius to understand the one most important aspect of surviving. It's having access to drinkable water Without water a person can't live more than three days. The second most important thing is food Men have been known to live more than a month without food. But there's absolutely no need for any person to be deprived of something to eat. Nature is and always has been a good and reliable provider. Everyone should know how to properly use her. Learn to live off the land. It really isn't that difficult. ROBERT PELTON'S OFFICIAL EDIBLE PLANT HANDBOOK tells you all you need to know. Tom Dodge of Heartland USA said this: "If Heartland USA had a 'Seal of Approval, ' these books would surely carry one."