Twain's writing is celebrated for its humor, sharp wit, and keen social criticism. His first major success, The Innocents Abroad (1869), chronicled his travels overseas. The Adventures of Tom Sawyer (1876) captured the nostalgia of boyhood along the Mississippi, while its masterpiece sequel, Adventures of Huckleberry Finn (1884), is considered one of the greatest American novels, addressing themes of freedom, racism, and moral conscience.
His other notable works include Life on the Mississippi (1883), The Prince and the Pauper (1881), A Connecticut Yankee in King Arthur's Court (1889), and The Gilded Age (1873). Through satire and vivid storytelling, Twain exposed the hypocrisies of society while capturing the spirit of America. He died in 1910, leaving a lasting legacy that continues to influence writers around the world.