Which C.S. Lewis novel is told through letters written by the demon Screwtape?

The Screwtape Letters is the C.S. Lewis novel told through letters written by the demon Screwtape.

The book is an epistolary satire: Screwtape, a senior demon, writes advice to his inexperienced nephew Wormwood about tempting a human subject. Lewis uses the demonic point of view to expose self-deception, distraction, pride, resentment, and other habits that can undermine a person’s moral and spiritual life.

The work first appeared in serial form in the Anglican newspaper The Guardian in 1941 and was published in book form later that year. Lewis dedicated it to his friend J.R.R. Tolkien, although the two writers had different religious and literary approaches.

Readers sometimes confuse the book’s narrator with Wormwood, but Screwtape is the senior correspondent giving instructions. The letters are fictional satire, not a theological handbook written from a literal demon’s perspective.