Sometimes the people who’ve owned the books in this shop leave little clues between the pages, and not just love notes or pressed flowers. You might come upon an unused Amtrak ticket tucked between the pages of The Adventures of Sherlock Holmes or a sprinkling of crumbs along the gutter inside The Complete Engravings, Etchings, and Drypoints of Albrecht Dürer. Makes you wonder what kind of person noshes on a salami sandwich over The Four Horsemen of the Apocalypse.