To kill a mockingbird.

The word ignorance means lack of knowledge. Racism is a form of ignorance. Boo Radley was initially looked upon the children with ignorance, The theme of ignorance permeates this novel. It is really only through education and climbing into someone's "skin" that a light can shine in the darkness of ignorance. Atticus shows the way for both his children and the town. Unfortunately ingrained ignorance is a difficult "disease" to cure but at least Atticus showed the town that there is a better way to look at their world.