From Library Journal:
The first occupywallstreet librarian was Betsy Fagin, who began the process of organizing the collection, which was originally housed in cardboard boxes under a tarp (Fagin was an ALA Spectrum Scholar at the University of Maryland where she received an MLS in 2004). But the recent rainy weather in New York quickly made clear that a better system was needed for outdoor storage. There are now about 15 plastic boxes which each hold about 30 books. There are also several boxes of graphic novels, two boxes of zines and pamphlets, some DVDs, and a box of magazines.
The library website is here.