>>2005946If you want to have a book in your hiking pack, get a tiny survival manual like this. It weights nothing and has lots of info.
Aside from this, you only want to bring bring a book with you if you're trying to learn something specific. What I mean is, you should get a book on local edibles and take it with you to learn to identiy plants while on a casual hike so that you have that knowledge when you need it.
Keep the information in your brain rather than having to carry a tiny library with you because you don't actually know shit.