800+ page tome of the Catholic catechism.
PART ONE: THE PROFESSION OF FAITH. "I believe-we believe"; the profession of the Christian faith
PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY. The sacramental economy; the seven sacraments of the Church
PART THREE: LIFE IN CHRIST. Man's vocation: life in the Spirit; the ten commandments
PART FOUR: CHRISTIAN PRAYER. Prayer in the Christian life; the Lord's Prayer