"The Four Million" by O. Henry is a collection of short stories published in 1906. This volume contains twenty-five tales set largely in New York City, exploring the lives of ordinary people across the metropolis. The title challenges the notion that only four hundred New Yorkers were worth knowing, asserting instead that all four million residents deserve attention. The collection includes some of O. Henry's most celebrated works, including "The Gift of the Magi" and "The Cop and the Anthem," showcasing his signature wit and unexpected endings.