Why Mark Twain is the Greatest American Author of All Time In the book Huck Finn, Mark Twain not only writes about the adventures of a young boy, he depicts the struggle that people had to go through in that time period. That is just one of the reasons why some people consider Mark Twain to be the greatest American author of all time. As I was reading the book Huck Finn I started to agree more with what Mencken had to say "Put him beside Emerson, or Whitman, or Hawthorne, or even Poe; he was palpably the superior of all of them". I could really relate to lots of the ideas and emotions that sprang