Summary

The Catechism of the Catholic Church presents a complete and systematic exposition of Catholic doctrine, covering faith and morals, in light of the Second Vatican Council and the Church's Tradition. It aims to help deepen understanding of the faith so it is oriented toward the maturing of that faith, its putting down roots in personal life and its shining forth in personal conduct.

Part One, "The Profession of Faith," begins with the fundamental question of what it means "to believe," exploring man's capacity for God, divine Revelation, and the response of faith. It then delves into the Creed, articulating the Christian faith in God the Father, the Creator; his Son, Jesus Christ, our Lord and Savior; and the Holy Spirit, the Sanctifier, within the Holy Church.

Part Two, "The Celebration of the Christian Mystery," examines how God's salvation, accomplished through Christ and the Holy Spirit, becomes present in the Church's sacred actions. It focuses on the sacramental economy, the liturgy as the work of the Holy Trinity, and the celebration of the Paschal mystery in the Church’s sacraments, detailing the significance of the seven sacraments: Baptism, Confirmation, Eucharist, Penance and Reconciliation, Anointing of the Sick, Holy Orders, and Matrimony.

Part Three, "Life in Christ," addresses man's vocation, and life in the Spirit. The dignity of the human person and Christian Beatitude is discussed, including human freedom, the sources of morality, the morality of the passions, moral conscience, the virtues, and the nature of sin. It considers the human community, the person, the society, and social justice. Finally, God’s salvation, law and grace are examined, as well as the role of the Church as Mother and Teacher. A significant portion of this section is dedicated to the Ten Commandments, providing comprehensive explanations of each.

Part Four, "Christian Prayer," delves into the meaning and importance of prayer in the life of believers. It explores the revelation of prayer, the tradition of prayer, and the life of prayer, including vocal prayer, meditation, and contemplative prayer. The Catechism concludes with a detailed commentary on the seven petitions of the Lord’s Prayer, offering insights into the good things for which we must hope and which our heavenly Father wants to grant us.

The Catechism includes supplementary material, such as an index of citations, a general index, a glossary, and, in some editions, a list of abbreviations, designed to facilitate understanding and navigation of this comprehensive work.