The Screwtape Letters by C.S. Lewis is a novel told in correspondence. Specifically, letters back and forth between a demon called Screwtape and his nephew Wormwood. These demons write to one another about all sorts of things, as families do, but mainly the humans. In this book, humans are the occupation of demons. Keeping them distracted, discontent, and leading them to misery is a merit of any accomplished demon. Readers will enjoy Wormwood's questions of "why must we do this?" or "is there a better way?" as he struggles with his mission to lead humans astray. Screwtape and Wormwood discuss many relevant issues of our own time, and the subject of spiritual warfare is present throughout. The Screwtape Letters is highly recommended for fans of Lewis as an introduction to more serious work or works on theology.