O. Henry, born William Sydney Porter in 1862, was an American short story writer renowned for his wit, clever wordplay, and signature surprise endings. His tales often romanticized the everyday lives of ordinary people, particularly those in New York City, and were distinguished by their humor, irony, and unexpected plot twists. O. Henry's prolific career spanned just a decade, but his impact on literature is enduring. His most famous works, such as "The Gift of the Magi" and "The Last Leaf," continue to captivate readers with their charm and unexpected revelations. Despite a life marked by personal struggles, including a stint in prison, O. Henry's stories remain a testament to his unique voice and enduring legacy in American literature.