Having spent a lot of time in libraries, I'm mildly surprised that there's a demand for this scent. Capturing the myriad of smells the library has to offer in a single spritz would be difficult for even the most seasoned chemists. For example, if it had been called, "In the Reference Section," this fragrance would be geared towards the introvert who would like to smell dusty with a casual hint of mildew. "At the Reference Desk," would be a pine scent for the curious yet uncertain. And for those who wanted to smell like nothing at all, there's "In Government Documents," because no brave soul has ever gone to this section (usually located somewhere in the bowels of the library), and returned to tell about it.