The Gondi-Medici Business Records comprise nearly two hundred separate bound manuscripts and other collections of documents—primarily account books, letter collections, and ledgers. These contain a vast array of information about the activities of multiple branches of the Gondi, Medici and related families in Italy in the late Middle Ages and the Renaissance.
The Kislak Center holds substantial collections of family papers from Italy, containing a wide range of documents dating from the Middle Ages and Renaissance into modern times.
The Kislak Center possesses over 1500 Western manuscript codices, collections, and fragments dating from ca. 850 to ca. 1700.
The Ross Bible Collection includes three medieval manuscripts and over one hundred printed editions of the Bible and related Biblical texts.