@ Paley Library, Main Floor and Mezzanine Experience Philadelphia’s bohemian past with this special exhibition of newly acquired materials from Middle Earth Books, an erstwhile Center City performance space/bookshop/publisher and Main Point, a Bryn Mawr folk music venue. The Middle Earth collection includes correspondence, manuscripts (both published and unpublished) and audio by Charles Bukowski, Andrei Codrescu, Richard Grossinger, Michael McClure, John Wieners, and Patti Smith, among others. The Main Point materials chronicle the history of a venue that introduced Philadelphia to many then-obscure artists like Joni Mitchell, Arlo Guthrie and Bruce Springsteen.