I think it would be nice if sims could borrow books from the library or from their friends, keep them for however long they need to read them and then return them. It would solve the issue of bookcases and half read books lying everywhere. Sometimes I avoid giving them bookcases because of this and prefer to store their books in a trunk.
If you want to get rid of books, I think you can also put them in the recycling machine. I think it might also be possible to sell them on the sales table too and pretend you are a second hand books dealer. Would be nice if sims could burn books. Kind of like how they burn money, but books instead.
