“Mere Christianity” by C.S. Lewis

“The Sabbath” by Abraham Herschel

“Introduction to Philosophy” by Norman Geisler

“The Great World House” by Dr. Hak Joon Lee

“Choosing the Good” by Dennis Hollinger

“Moral Choices” by Scott Rae

“Moral Man & Inmoral Society” by Reinhold Niebuhr

“Screwtape Letters” by C.S. Lewis

“Why Should We Then Live?” by Francis Schaeffer

“A Christian Manifesto” by Francis Schaeffer