42 Days with Huck Finn Preface.

Harriet Beecher Stowe (June 14, 1811 – July 1, 1896) 

Mark Twain Begins the story of Huck Finn with a Notice that reads:

PERSONS attempting to find a motive in this narra- tive will be prosecuted; persons attempting to find a moral in it will be banished; persons attempting to find a plot in it will be shot.

BY ORDER OF THE AUTHOR,
Per G.G., Chief of Ordnance.

That is why writing poetic impressions is the best way to review this book.  Twain wrote this book as an impression of the period; he did not want this book to be like the one Harriet Boetcher Stow wrote, a protest novel.   A protest novel lacks the ability to tell truthfully the subject being presented.   

EXPLANATORY

IN this book a number of dialects are used, to wit: the Missouri negro dialect; the extremest form of the backwoods Southwestern dialect; the ordinary "Pike County" dialect; and four modified varieties of this last. The shadings have not been done in a hap- hazard fashion, or by guesswork; but painstakingly, and with the trustworthy guidance and support of personal familiarity with these several forms of speech.

I make this explanation for the reason that without it many readers would suppose that all these characters were trying to talk alike and not succeeding.