The Peace Palace Library:
Pros: Quiet, well-lit and with inspiring views.
Cons: The cafeteria sucks.
The Hague Public Library:
Pros: Quiet, well-lit and with inspiring views.
Cons: The crazies that occupy any public library.
The cafe around the corner:
Pros: Caffe latte
Cons: Not quiet, not well-lit, distracting views.
I'll keep you guessing where I spend most of my time.