If you’re a little book freak then stop with whatever you’re doing and listen very carefully! In Ghent there is a used book café. Before you ask yourself: what would I do there, let me explain: you go inside, admire the beautiful interior with a LOT of books, drink a coffee and take a look at all the books they have. If you see something you like and you have -by accident- a book with you, then just switch the books and pay a very little price for the used book! If you don’t have a book with you, no problem, you can also buy the second-hand books.
Result: you have a new second-hand book and most of all you had a really great coffee in one of the coziest interiors in the city center! And if you actually don’t like books, just go there for the interior. I promise you won’t be disappointed.