The Adventures of Huckleberry Finn is at once Mark Twain's most celebrated and most controversial work. The novel earned more money for the author than any other of his novels, outselling even The Adventures of Tom Sawyer; yet from the start it fell under the stern gaze of censors who objected to its coarse language and bad grammar. In the latter half of the twentieth-century it faced fresh criticism and was removed from schools and public libraries by those who leveled accusations of racism against its author.