My reaction to the various pictures, for what it's worth, was "what a beautiful place - perhaps it needs more blackboards, but I would love to do maths there".
You could also fit a large assortment of gourmet meats into a stack of shoeboxes, but it's preferable to display them in a way that whets the observer's appetite.
I don't know, I find a bunch of yellow-spined Springer texts to be appetizing just shelved together. I didn't realize the shelves weren't empty until I saw the top comment and went back to look.
I'm not sure how big Oberwolfach's library is, but the first pic looks more like a (somewhat fancy) journals/new acquisitions display than like primary storage.