Mark Twain, whose real name was Samuel Clemens, was a celebrated writer and humorist who is best known for his classic American novels The Adventures of Tom Sawyer and its sequel Adventures of Huckleberry Finn. Twain wrote several other novels, including The Gilded Age, Life on the Mississippi, and The Innocents Abroad, as well as short stories and essays. In his lifetime, he also worked as a journalist, riverboat pilot, lecturer, and entrepreneur.