The importance of spiritual reading is emphasized by Fr. John Hardon, S.J., in his book Theology of Prayer (the book is available in our library here and the chapter on spiritual reading here).
By now one implication should be clear enough: Who needs spiritual reading? Everyone who wants to become Christlike! There is no choice. The Savior is not for nothing called the Word of God. We seldom think of Him as also—how I like the phrase—the Written Word of God, written in the Gospels which describe His life and in the apostolic writings His life inspired; written in the Church He founded and of which He continues as her invisible Head; written in the saintly men and women who are faithful images of what their Master had been. This Master is unique. He not only teaches, He reproduces. All of this is ready to be read by us, if only we are willing to read. Christ, we are told by St. John, is the light that shines in the dark. And, if we are honest, we must admit how dark the darkness is. We need Him, the Light of our own world, to enlighten us about how we are to serve Him, so that we might love Him and bring others to love and serve Him too.
In order to help you find books that will help you in your spiritual life, we have chosen a few dozen books from our library's collection of thousands. And several of these books are or will also be available in our bookstore as well. We will update, expand, and create additional lists, so check back here for more in the future. For now, here are four lists: