Which C.S. Lewis book features the fictional demon Screwtape?

The Screwtape Letters is the C.S. Lewis book featuring the fictional demon Screwtape.

The book is structured as a series of letters from Screwtape, a senior tempter in Hell, to his inexperienced nephew Wormwood. Screwtape offers advice on tempting a human patient, while Lewis uses the correspondence to examine habits, distractions, pride, fear, and moral choice from an intentionally reversed perspective.

The letters first appeared in the Anglican newspaper The Guardian in 1941, and the complete book was published later that year. Lewis dedicated it to his friend J.R.R. Tolkien, although Tolkien reportedly disliked the work’s format and premise. The narrative voice is satirical, but the book’s subject is serious Christian moral psychology.

Screwtape is a fictional character, not a figure from biblical scripture. The book is also distinct from The Great Divorce, another Lewis work that uses imaginative scenes to discuss heaven, hell, and spiritual choice.