A portrait of American writer Samuel Clemens, best known by his pen name Mark Twain, in his later years. Twain is most noted for his novels Adventures of Huckleberry Finn, which has since been called the Great American Novel, and The Adventures of Tom Sawyer. Twain enjoyed immense public popularity, and his keen wit and incisive satire earned him praise from both critics and peers. Fellow author William Faulkner called Twain "the father of American literature".Photo credit: Unknown
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