The Holy MassDom Prosper Guranger (1805 1875) devoted himself to liturgical scholarship, polemics, and the establishment of Benedictine communities in France. The Holy Mass is Guranger's most extensive treatment of the heart of the liturgy and firmly established him as a leading liturgist. By turns devotional, exegetical and historical, this is therefore a timely publication of one of the great treasures of Catholic liturgical spirituality.