Discover the life and works of Mark Twain —his childhood, themes, legacy, and role in the development American literature. Learn about the life and works of Mark Twain , the American writer, humorist, and essayist who wrote classics like The Adventures of Tom Sawyer and Huckleberry Finn. Find out about his biography, career, influences, and legacy. Mark Twain is widely considered, to this day, to be one of the most iconic writers of a generation. Legally known as Samuel Langhorne Clemens, Mark Twain ’s poetry and prose had a personality of its own. His works were celebrated for their blend of wit, irony, and humor. He was the voice of his generation and one of the most celebrated authors of the late 19th century, writing some of America's best-known and most memorable works of literature: The Adventures of Tom Sawyer, Life on the Mississippi, and The Adventures of Huckleberry Finn.