Atheism is in revival. Many in the 21st Century lack a belief in a supernatural Creator. This requires an emboldened response from those who also live by faith, doing what God has called them to do, and not through their five senses alone (2 Corinthians 5:7). As Pope Benedict XVI said in his January 9, 2013, audience, The event of the Incarnation, of God who became man, like us, shows us the daring realism of divine love. Those of us who ‘see’ that daring realism are called to share it with others, and that is the idea behind this book called Catholic Realism. As Catholics, we can share a response based on revelation and interpreted by the Magisterium, but that will not satisfy the atheist. Indeed, it does not satisfy many who believe the Gospel message is true but do not live faith-filled lives. For that reason, a philosophical response is a necessary pre-evangelization tool. This book is designed to assist the everyday evangelist in developing such a tool.