Cooper first gained national fame with The Spy (1821), a historical novel set during the American Revolution. He is best remembered, however, for the five novels known as the Leatherstocking Tales: The Pioneers (1823), The Last of the Mohicans (1826), The Prairie (1827), The Pathfinder (1840), and The Deerslayer (1841). These works follow the frontiersman Natty Bumppo and his Native American friend Chingachgook, dramatizing the clash between civilization and wilderness on the expanding American frontier.
Cooper also wrote successful maritime adventure novels, including The Pilot (1824). His vivid depictions of American landscapes, frontier conflicts, and Native American characters earned him international recognition and profoundly influenced later American writers.