Mark Twain, the writer, adventurer and wily social critic born Samuel Clemens, wrote the novels ‘Adventures of Tom Sawyer’ and ‘Adventures of Huckleberry Finn.Who Was Mark Twain?Mark Twain, whose real name was Samuel Clemens, was the celebrated author of several novels, including two major classics of American literature: The Adventures of Tom Sawyer and Adventures of Huckleberry Finn. He was also a riverboat pilot, journalist, lecturer, entrepreneur and inventor.