(©J. Smith/Visit Philadelphia)
Holdings here run the gamut from 4,000-year-old clay tablets to a collection of orchestral music that numbers more than 13,000 compositions and, of course, lots of books. Author events are frequent, as notable writers often make this a stop on national book tours. M-Th 9 am-9 pm, F till 6 pm, Sa till 5 pm, Su 1-5 pm.