Through a series of sharp, darkly humorous letters, a well-seasoned devil imparts wisdom and user-friendly tricks to his nephew Wormwood, who is still naive about the process of tempting and corrupting the hearts and minds of human beings. As a premise, this would be merely clever or gimmicky, but in C. S. Lewis’ hands, the book is something thought-provoking and so knowing it may shake you awake – while laughing.