Since the publication of Dom Gueranger's The Liturgical Year a century ago, no commentary on the Church's official worship has been acclaimed as widely, translated into as many different languages, or influenced the thinking and religious formation of as many persons as Dr. Pius Parsch's Jahr des Heiles, ' The Church's Year of Grace.' Each day's liturgy is treated at length its Holy Mass, its Saint, its Divine Office; each turn in the Church Year receives special attention, and many associated topics are considered at the opportune moment.