Over his career, O. Henry wrote nearly 400 short stories, renowned for their wit, warmth, and ingenious surprise endings—a narrative technique so closely associated with him that it became known as the "O. Henry twist." His stories often portrayed ordinary people—the poor, clerks, shop girls, and drifters—with compassion and humor, capturing the spirit of early twentieth-century New York City, his favorite setting.
Among his most famous works are "The Gift of the Magi," the poignant tale of a young couple who sacrifice their most treasured possessions for each other; "The Last Leaf," a moving story of hope and sacrifice; "The Cop and the Anthem," a comic masterpiece of irony; and "The Ransom of Red Chief." His notable collections include The Four Million (1906) and Cabbages and Kings (1904). Today, the prestigious O. Henry Award honors excellence in short fiction, cementing his lasting legacy.