These particular books have been very influential to the church’s stance on morality and many other foundational teachings, as well as being spiritually enlightening for the laity. It is obviously by no means an exhaustive list, as there are 36 Doctors but just a few I can recall.
St. Augustine of Hippo - (a personal favourite)
-Confessions
-City Of God
-On Christian Doctrine
-Homily on the Gospel of John
-The Trinity
-The Lord’s Sermon on the Mount
-The Spirit and the Letter
St. Alphonsus de Liguori -
-Uniformity with God’s Will
-The Direction of Souls Who Wish to Lead a Deeply Spiritual
Life
- Visits to the Blessed Sacrament
-Novena of the Sacred Heart of Jesus
-Glories of Mary
-The Practice of the Love of Jesus Christ
St. Athanasius of Alexandria -
-On the Incarnation
-The Life of Anthony
-Paradise or Garden of the Holy Fathers: Volumes 1 & 2
St. Ephrem the Syrian-
-Commentary on Genesis
-Commentary on the Diatessaron
-The Homily on the Lord
-Hymns on Paradise
St. Francis de Sales -
-Introduction to the Devout Life
- The Spiritual Conferences
- The Treatise on the Love of God
St. Gregory Nazianzus -
-On God and Christ
-On the Divinity of the Son and Holy Spirit
St. Ignatius of Antioch -
-St. Ignatius of Antioch: The Epistles
St. John of the Cross -
-Spiritual Canticle
-The Dark Night of the Ascent of Mount Carmel
-The Living Flame of Love
St. Robert Bellarmine -
Disputations about the Controversies of the Christian Faith
against the Heretics of the Age 3 Volumes
-The Art of Dying Well
-Commentary on the Psalms
-Brief Christian Declaration
-Declaration of Christian Doctrine
St. Theresa of Lisieux -
-Story of a Soul (very beautiful)
St. Thomas Aquinas -
-Summa Theologiae - (This is a big read but essential to the doctrine of the faith)
-Commentary on the Sentences of Peter Lombard
Other Essential Books -
-The Holy Bible
-1945 Father Lasance Roman Missal
-1951 Little Office of the Blessed Virgin Mary - (very beautiful)
-Catechism of the Catholic Church
I love all of Ven Fulton Sheen’s books, and Pope Benedict XVI’s works, including Introduction to Christianity, are worth reading.
Dante’s Divine Comedy is a literary masterpiece I recommend.
Apologetics like G.K Chesterton, John Cardinal Henry Newman, and C.S Lewis also have many great works.
Benedicat Te Omnipotens Deus