I recently listened to the Faith and Reason audio lecture series by Peter Kreeft, a professor of philosophy at Boston College, under whom I had the privilege of studying. Kreeft has written dozens of books, including Catholic Christianity, Back to Virtue, and Christianity for Modern Pagans. His books are readable, and I recommend them for anyone who wants a deeper understanding of Catholic philosophy, theology, and methodology.
This series is a bit more dense than his books typically are, but you do not need to be a philosophy student to grasp the concepts. If you struggle with the concept of God, if Steps 2 and 3 make you uncomfortable, if you don’t understand how faith, reason, and science fit together; or maybe you describe yourself as “atheist/agnostic Catholic,” I recommend you read one of Kreeft’s books or listen to this series. The series is available on Audible for 1 credit. If you don’t have an Audible membership, you can download the book for free as part of your 30-day trial.