The Picture of Dorian Gray is a novel by Oscar Wilde that explores the themes of decadence and the pursuit of pleasure. Set in the late 19th century, 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 witty writing style and his examination of the corrupting influence of society make this book a classic of the fin-de-siècle period.