Collection consists of manuscripts (books, leaves, and documents written by hand), mostly from medieval and early modern Europe. Most items were produced in Western and Southern Europe (France, England, Flanders, the Netherlands, Germany, Italy, and Spain), although a few are from the Middle East and Southeast Asia. Many leaves are illuminated and feature decorative initials, borders, line fillers, etc. Most are in Latin, although a few are in medieval vernacular or other languages.
The collection is arranged in series by manuscript type: Books of hours, liturgical books (contains leaves from psalters, breviaries, antiphonals, and graduals), charters, Bibles, and canon law.