Which C.S. Lewis work features the demon Screwtape advising his nephew Wormwood?

The Screwtape Letters features the senior demon Screwtape advising his nephew Wormwood.

C.S. Lewis’s book was published in 1942. It consists of letters written by Screwtape, an experienced tempter in Hell, to Wormwood, a junior demon assigned to influence a human “patient.” Lewis uses the reversed viewpoint to satirize temptation, self-deception, distraction, pride, and spiritual complacency.

The format lets Lewis discuss human behavior without presenting a conventional narrator who explains the moral directly. Screwtape often recommends small habits and misdirections rather than dramatic evil, making the book’s observations applicable to ordinary life. The tone combines comedy, irony, and serious religious argument.

Lewis dedicated the book to J.R.R. Tolkien, although their friendship later became strained over the work’s satirical approach. A final piece, “Screwtape Proposes a Toast,” was published separately in 1959 and later included with the letters in many editions.