Publisher Summary This chapter discusses the Mt. Angel Abbey Manuscript and Rare Books Project, which focuses on cataloguing with FAMULUS. Mt. Angel Abbey Library has begun cataloguing its rich research collection of manuscripts, incunabula, and pre-1800 rare books, which has special strength in patristics, liturgy, hagiography, theology, church history, canon law, and Counter-Reformation apologetics. More than merely an isolated cataloguing project, however, the current undertaking is envisaged as a case study or pilot project to investigate the possibilities of adapting packaged computer programs to produce inexpensive book catalogs and machine readable data bases with better descriptive data than in common indexes, census surveys, or short-title catalogs available to codicologists and historical bibliographers.