Aside from literature, which I love, I have found that I have quite a fondness for owning textbooks, both physical and digital. (Reading them is a whole different story, though)
I have a textbook for Non-Classical Logic, Rock-Forming-Minerals, both of which I don’t even begin to comprehend as I lack the fundamentals, General Physics, General Maths, Zoology, Lichen, Insect Morphology (didn’t even know about that one anymore), Invertebrates excluding insects, Freshwater Biology, a bunch of species identification keys, Inductive Statistics, etc. etc.
Some of those I obviously need for university, but most are stuff I just found for free somewhere and took or downloaded with the intention of learning something.
I always have this scenario in mind of society collapsing, but it won’t be a problem for me because I have a lot of things to learn. Does anyone here have a similar “condition”? Haha
Sort of. I own a bunch of physical textbooks related to field, as well as many more digital textbooks that are essentially standards for difference aspects of my profession (Books on anatomy, pharmacology, cell bio, biochem, etc). I actually do still refer to these from time to time.
Outside of that I do keep technical books and such related to a lot of hobbies I have like botany, gardening, and cooking.