The library of the survivor is such an important thing to have. It seems counterintuitive this day in age. The age of technology seems to encompass all. The truth is we are relying too much on electronic information. At this point in our lives we are at great risk of losing swaths of priceless information if we were to lost power from something like an EMP. How would the world startup when the vast majority of its knowledge would be inaccessible?
This is a terrifying reality that you should consider the next time you pass that bushcraft book at the book store. Knowledge is power and in a collapse the more you have the better off you will be. Collect that knowledge and keep your stash growing. Books are another great item to barter as well. If you have two of the same book this is not a detriment.