This novel takes a satirical view toward racism in the South. It is told from the point of view of a young white boy who has been raised to have certain attitudes toward African Americans. The racist views of Huck and of the rest of the white people in the area are highlighted and exaggerated (though it's not much of an exaggeration really) to show how outrageous the racist view are.
Pap is a good example of the view toward racism in this novel. He is a drunk and an abusive father; what one would consider the most low-down kind of person there is. In theory, he should be at the very bottom of the social ladder because all he does is drink and does not have a job. However, he tells of when he goes north, and mentions a free black man that he sees there. Pap is outraged at the behavior of the black man because the black man has more class than he does. Pap thinks that just because he is white, he is above a black man no matter what other factors come into it.