Right. Indeed the "N" word appears on just about every page of the entire novel, which I only got around tor eading about a year ago and I'm 62. It's quite an eye-opener on racial attitudes in the pre-Civil War South and sometihng everybody should read, if only to see how far we've come since then.
There are also some really great character consrasts between Huck, who's essentially a very practical blue collar hick, and his buddy, Tom Sawyer, who has a lot more book larnin, but no where as near as much practical knowledge as Huck. Sufffice it to saw, without revealing too much of the funniest part of the novel, that applying Tom's larnin manages just about to get Huck, Tom, and Jim killed.
Tom Saywer is the archetype for the unseen manager, an artist in the field of sociology in the workforce; a delegating fool.