Amsterdam bookstores

[stelingo]

I will be in Amsterdam for a few days next week. Can anybody recommend any good bookstores where I can buy language resources, for all languages, not just Dutch?

[Sonjaconjota]

There’s a square called Spui with two small bookshops, Athenaeum Boekhandel and The American Book Center. At least the last one had some language learning resources in English, if I remember correctly.
After some searching, I also found a nice big bookstore called Scheltema near the central station. They have a decent sized language learning section.
I didn’t visit it, but there’s a Waterstones, too, that should have some language learning stuff.