What is the title of C.S. Lewis’s 1942 epistolary novel written as demonic advice?

C.S. Lewis’s 1942 epistolary novel written as demonic advice is The Screwtape Letters.

The book consists of letters from Screwtape, an experienced demon, to his nephew Wormwood. Screwtape offers guidance on tempting a human subject, while the reader must infer the moral and spiritual lessons from the demons’ distorted perspective.

Lewis used the letters to examine ordinary human weaknesses, including distraction, pride, resentment, self-deception, and misplaced priorities. The work’s satirical form allowed him to discuss Christian ethics without presenting the advice as a conventional sermon.

The book first appeared in Britain in 1941 in the Anglican newspaper The Guardian and was published in book form in 1942. It became one of Lewis’s most popular works. The title is sometimes confused with The Great Divorce, another Lewis book concerned with spiritual themes, but that work uses a very different narrative form.