The Picture of Dorian Gray is a novel by Oscar Wilde that epitomizes the decadence and hedonism of the fin-de-siècle era. It tells the story of Dorian Gray, a young man who remains eternally youthful while a portrait of him ages and reflects the corruption of his soul. This book explores themes of beauty, morality, and the pursuit of pleasure, making it a quintessential work of the Decadent movement.