The Screwtape Letters by C.S. Lewis

One of C.S. Lewis's most imaginative creations, this world-famous book is a humorous correspondence between the devil Screwtape and his apprentice Wormwood, whose job is to produce a human's soul for eternity in hell. Filled with astute insights into temptation, repentance, and grace, this wonderful tale intelligently explores what it means to live a good, honest life and is a favorite of Lewis fans.