O. Henry (pseudonym of William Sydney Porter) was a famous American short-story writer. He is known for his witty tales with unexpected twist endings.

১. His most famous story is "The Gift of the Magi," set in New York City.
২. He lived a colorful life, including time spent in prison, which influenced his writing.
৩. His stories often portrayed the lives of ordinary people with sympathy and humor.

অতিরিক্ত তথ্য: The "O. Henry Award" is a prestigious annual prize given to outstanding short stories.