First published in 1921, Fr. Dominic Prümmer’s Handbook of Moral Theology quickly became a trusted standard for clergy and laity seeking clear guidance in Catholic moral doctrine. Marked by precision, fidelity to tradition, and careful reasoning, this classic manual addresses the foundations of moral theology before examining the sacraments and their role in shaping Christian life. Covering topics such as law, conscience, sin, family life, social obligations, and moral cooperation, it presents the Church’s teaching with depth and balance. This restored edition, newly typeset and enriched with corrected and expanded citations, offers a reliable and enduring reference for those who desire clarity amid moral confusion.