The Picture of Dorian Gray is a classic novel by Oscar Wilde that explores the themes of decadence and the pursuit of pleasure. The story follows the life of Dorian Gray, a young man who remains eternally youthful while a portrait of him ages and reflects the consequences of his immoral actions. Wilde's novel is a masterpiece of wit and satire, delving into the dark side of human nature and the dangers of indulging in one's desires.