Abstract
Throughout the Middle Ages, documents commemorating the names of dignitaries and benefactors in monasteries and churches were characterized as liber vitae, just as the heavenly book mentioned in the Bible. Those whose names were inscribed in such a list were promised eternal life through commemoration. The paper discusses material and medial aspects of the mediation of salvation within such documents as well as the shifts between different sorts of bookkeeping arising between the 9th and the 15th century by focusing on writing strategies, document organization, and layout in Carolingian confraternity books, monastic necrologies, and late medieval obituaries or anniversary books from collegiate and parish churches. Their differing structures show how concepts and places of liturgical commemoration changed over the centuries.