I don’t know anything about the library, library system, or how they operate; however, I must set the record straight…rugelach (there are quite a few accepted spellings) is a pastry/delicacy of Jewish descent. http://en.wikipedia.org/wiki/Rugelach
I might also add, as a self-proclaimed aficionado, it is very tough to find a decent piece of rugelach, as with most other good/high-end pastries, here in Lancaster County…the birthplace of the ‘doughy roll’. A good sign are those that are sold by the pound, not by the piece. Locally I would recommend Binderup’s and La Dolce Vita…yes that is an ITALIAN bakery serving a JEWISH treat.
