The standard reference for Catholic dogmatic theology. Reveals the historical development of Church doctrine through chronological arrangement of key passages from principal magisterial source documents. Image links to free 1954 edition, which employs the pre -1963 marginal numbering system. ISBN recommendation: 0898707463
Papal letters to the Universal Church or, in many cases, especially before Vatican II, to the Bishops in communion with the Holy See. Worthy of special attention besides Rerum Novarum (see previous post) are Quadragesimo Anno, Mater et Magistra, Pacem in Terris, Populorum Progressio, Laborum Exercens, Sollicitudo Rei Socialis, Centesimus Annus, Caritas in Veritate, Fides et Ratio, and Spe Salvi. As of this post, the Vatican has online the encyclicals of Leo XIII, Pius X, Benedict XV, Pius XI, Pius XII, John XXIII, Paul VI, John Paul II, Benedict XVI, and Francis. ISBN recommendation: 0-87650-259-1
Reflections regarding the Christian claim to Truth, the tolerance of Love, and the maintenance of peace. ISBN recommendation: 1-58617-035-X.
Intended to foster understanding and appreciation of “the liturgy in all its beauty, hidden wealth, and time-transcending grandeur, to see it as the animating center of the Church, the very center of Christian life.” ISBN recommendation:0-89870-784-6
A “compendium of all Catholic doctrine regarding both faith and morals”. An updated and systematic presention of “the teaching of Sacred Scripture, the living Tradition in the Church and the authentic Magisterium, as well as the spiritual heritage of the Fathers, Doctors and saints of the Church”. Promulgated by Pope John Paul II on 15 August 1997. Image links to Vatican translation. ISBN recommendation: 0385508190