Everything Csiewert said, plus they're got a really good selection of travel books and maps and…read morethere is a small selection of English books in the basement.
Head down the stairs and go straight on. If you hit the wall, you've gone too far. You'll only find the latest best sellers, or some of the classics, along with a few children's books, but if you, like me, enjoy leafing through a book, rather than buying online, then it's a nice place to go.
That said, they often move things around, and that's annoying.
They have a good ordering service, and do gift vouchers. They aren't like gift vouchers in the UK, you can only use them in this shop.