mikkupikku parent
Just leave it laying around somewhere. It makes you look erudite.
Or like I have a hoarding problem.
In the old days, we used to cart boxes of books down to the used book store in exchange for credit, and then load back up with more reading to bring home.
I mostly meant that suggestion as a joke, but to be real I can't imagine reading so many books that you run out of room for enough bookshelves. I have several boxes of books and it's a huge pain when moving to a new apartment, but otherwise I just get more shelves when I need more. I don't think having a lot of full bookshelves would ever be perceived by others as a hoarder scenario if the apartment is kept clean and neat. But I do think that being seen to own many books will generally give people a better impression of you, so I was sort of serious with that joke.