Hingham Public Library has become one of 50 libraries to test a new digital catalog of eBooks and historical documents. Led by the Massachusetts Library System, the program has added 10,000 titles and documents to the library’s already expansive database of 6,000 electronic books. Library director Dennis Corcoran said the six-month pilot program began in December, and offers two databases: Baker & Taylor for popular titles and research-oriented Biblioboard. Librarians are especially excited about gaining access to Biblioboard. “They are all scanned books, PDFs of older titles,” Corcoran said. “Like if you wanted a copy of ‘Dracula’ . . . it will be the scan of some 1897 editions . . . It’s cool in a research way.” Signup is easy and works similarly to the library’s Overdrive program, Corcoran said. For information, visit www.hinghamlibrary.org or call 781-741-1405.