American writer O. Henry is celebrated for his short stories that romanticize everyday life, particularly in New York City, and frequently feature surprise endings. His works, such as “After Twenty Years,” “The Gift of the Magi,” and “The Last Leaf ” are noted for their fairy tale-like atmosphere and unexpected twists, making them appealing to both children and adults. O. Henry’s stories are renowned for their wit, dramatic dialogue, and clever twist endings. His keen observation of the human condition, combined with his playful use of irony and humor, has established his reputation as a master of the short story.