Which C.S. Lewis book presents correspondence from the demon Screwtape to his nephew Wormwood?

The Screwtape Letters presents correspondence from the demon Screwtape to his nephew Wormwood.

C.S. Lewis’s book was first published in 1942. It consists of letters in which Screwtape, an experienced tempter, advises the inexperienced Wormwood about influencing a human being. Lewis uses the viewpoint of Hell to expose habits such as distraction, self-deception, resentment, and spiritual complacency.

The fictional letters were originally connected with wartime Britain. Lewis’s preface refers to the pressures of the Second World War, although the book’s moral observations are not limited to that historical setting. The epistolary form lets Lewis reverse the usual perspective: readers hear demons discussing how to lead a person away from goodness.

Screwtape is not the human subject being tempted, and Wormwood is not the narrator. Screwtape writes the letters, while Wormwood is the junior tempter receiving his instructions.