Here is a list of books to help you in your theological and philosophical studies. I am sure many of these will look familiar. I will add to this list as I study more in the future.
The more I study the bigger this list will get, so be sure to check back for more suggestions. God bless!
Scripture (I predominately use RSV)
The Catechism of the Catholic Church
The Documents of Vatican II (and any ecumenical council)
Church Documents of recent memory worth serious study:
Fides et Ratio
Redemptoris Hominis
Veritatis Splendor
Lumen Fidei
Deus Caritas Est
Mater et Magistra
Rerum Novarum
Gaudium et Spes
Lumen Gentium
Dei Verbal
Providentissimus Deus
Quadragesimo Anno
Humani Generis
Spe Salvi
Caritas in Veritate
Ecclesia de Eucharistia
Evangelium Vitae
Redemptoris Mater
Laborem Exercens
Compendium of Catholic Social Teaching
Catechism of the Catholic Church
Fides et Ratio is my favorite encyclical of recent memory.
Orthodoxy by GK Chesterton
Summa Contra Gentiles by St. Thomas Aquinas
Summa Theologica by St. Thomas Aquinas
If you are going to wade into Aquinas, study of Aristotle and Plato is needed
Aristotle’s Modern Basic Works
Aristotle for Everyone by Mortimer Adler
Confessions by St. Augustine
The work of St. John Damascene
The work of St. Athanasius
The Church Fathers
St. Justin Martyr in response to Platonism, First Apology, Second Apology
Meeting Christ in the Sacraments by Colman O’Neill, OP
The Spirit of Early Christian Thought by Robert Wilken
Anything by St. John Paul II (Fides et Ratio is a personal favorite)
Anything by Pope Emeritus Benedict XVI (Jesus of Nazareth is a personal favorite)
Anything by Dr. Peter Kreeft (Summa of the Summa)
Life of Christ by Fulton Sheen
Philosophy of the Human Person by Fr. James Reichmann, SJ
Right and Reason by Fr. Austin Fagothey, SJ
The Catechetical Lectures of St. Cyril
The Shape of Catholic Theology by Aidan Nichols, OP
Mere Christianity by CS Lewis
Learning the Virtues that Lead You to God by Romano Guardini
The Chronicles of Narnia (Yes they are full of theology!!!)
The Divine Comedy by Dante
Anything and everything by G.K. Chesterton
The Size of Chesterton’s Catholicism by David Fagerberg
The Splendor of the Church by Henri De Lubac
Mystery of the Kingdom by Edward Sri (book focuses on the Gospel of Matthew)
A Biblical Walk Through the Mass by Edward Sri
Jesus and the Jewish Roots of the Eucharist by Brant Pitre
Jesus Christ: Fundamentals of Christology by Roch A. Kereszty
On Human Nature by St. Thomas Aquinas
Person and Being by Fr. W. Norris Clarke, S.J.
Aquinas by Edward Feser
Scholastic Metaphysics: A Contemporary Introduction by Edward Feser
Meditations for Lent by Jacques-Benigne Bossuet
The Sources of Christian Ethics by Servais Pinckaers, O.P.
The Pursuit of Happiness God’s Way: Living the Beatitudes by Servais Pinckaers, O.P.
Discovering Aquinas: An Introduction to His Life, Work, and Influence by Aidan Nichols, O.P.
33 Days to Morning Glory: A Do-It-Yourself Retreat In Preparation for Marian Consecration by Michael E. Gaitley, MIC
The Four Cardinal Virtues: Prudence, Justice, Fortitude, Temperance by Joseph Pieper
Story of a Soul by St. Therese of Lisieux
The Life of Saint Teresa of Avila by Herself
Interior Castle by St. Teresa of Avila
33 Days to Merciful Love: A Do-It-Yourself Retreat in Preparation for Consecration to Divine Mercy by Michael E. Gaitley, MIC
A Grief Observed by C.S. Lewis
The work of Flannery O’Connor
The works of Friedrich Nietzsche in order to understand our culture today
The Strangest Way by Bishop Robert Barron
Bridging the Great Divide: Musings of a Post-Liberal, Post-Conservative Evangelical Catholic by Bishop Robert Barron
Heaven in Stone and Glass: Experiencing the Spirituality of the Great Cathedrals by Bishop Robert Barron
Love and Responsibility by Saint John Paul II
Reclaiming Catholic Social Teaching by Anthony Esolen
Vibrant Paradoxes: The Both/And of Catholicism by Bishop Robert Barron
Making Sense Out of Suffering by Peter Kraft
The Seven Storey Mountain by Thomas Merton (I read this for the first time while I was a 9/11 relief worker. I carried it with me during that time and I reread it every few years.)
On Woman by Edith Stein
Why Celibacy? Reclaiming the Fatherhood of the Priest by Fr. Carter Griffith
You Shall Be A Blessing: Twelve Letters on the Priesthood by Cardinal Gerhard Muller
The Priests We Need to Save the Church by Kevin Wells
Praying for Priests: An Urgent Call for the Salvation of Souls by Kathleen Beckman
The World’s First Love: Mary, Mother of God by Venerable Fulton Sheen
Spiritual Warfare and Discernment of Spirits by Dan Burke
The Cries of Jesus From the Cross: An Anthology, Venerable Fulton Sheen
Be Healed, Bob Schuchts
The People of Towel and Water, Servant of God Catherine Doherty
Dear Father, Catherine Doherty
Poustinia, Catherine Doherty
You Shall Stand Firm: Preserving the Faith in an Age of Apostasy, Fr. William Casey, C.P.M.
The Soul of the Apostolate, Jean-Baptiste Chautard, O.C.S.O.
The Long Loneliness, Servant of God Dorothy Day
Loved As I Am, Miriam James Heidland, S.O.L.T.
The Crisis in the Church, Ralph Martin
Fulfillment of All Desire, Ralph Martin
Live Not By Lies, Rod Dreher
The Benedict Option, Rod Dreher
The Day is Now Far Spent, Robert Cardinal Sarah
On the Cross of Rejection, Catherine Doherty
Thomas Becket: Defender of the Church, Fr. John S. Hogan
The Grace of Enough, Haley Stewart
Priestly Fatherhood: Treasure in Earthen Vessels, Jacques Philippe
Finding Confidence in Times of Trial, St. John of Avila
Reflections on the Christian Life, Anthony Esolen
Ironies of Faith: The Laughter at the Heart of Christian Literature, Anthony Esolen
A Mind at Peace: Reclaiming an Ordered Soul in the Age of Distraction, Christopher O. Blum and Joshua P. Hochschild
The Power of Silence, Robert Cardinal Sarah
Making Sense Out of Suffering, Peter Kreeft
Swimming the Depths 