It sounds like a solid book like that would make a world of difference in those scenarios! Make some other random things so people try to steal those but keep the real treasure, the book on how to do it all.
Smoking dung huh? That sounds like a crazy experience lol but then again they make psylicibin (magic mushrooms) from mushrooms that grow off cow poop so it's not that bad lol
Only one book on what is edible to reference back to if needed.
Living off the land could have some unique experiences, sure we could make it though....