I work in a library, so I have access to borrowing books.

Actually, rn I had to do an inter-library loan (borrowed a book from another city) and it works out fine. I usually only buy books that I've read and will actively want to re-read, manga series that I would re-read. I rarely buy books that I haven't read before anymore, there's a risk there that if I don't like the book, it's probably gonna be stuck with me unless I donate it or try to sell it.

The only time I'd buy a book I haven't read is if I know and trust the author, like Peter Beagle--he's got a couple of new books coming out. Or if it's a book that inspired a piece of media I already enjoyed like Kiki's Delivery Service or the MDZs books.