The main theme of To Kill a Mockingbird is Harper Lee's inhumanity towards man. Harper Lee's To Kill a Mockingbird explores the concept of injustice and its readers are introduced to a society where social hierarchy dominated the acts of humanity. We are often put in situations where we witness members of society being inhumane towards each other to fit in with the community and act selfishly to save themselves. Within the text, we are also commonly shown the racial discrimination that has become the norm of society. Due to the general acceptance of these behaviors, it is explicitly shown to everyone that the main theme Lee is trying to portray is "man's inhumanity to man". To Kill A Mockingbird shows an environment where one must be inhumane towards another in order to become socially compatible. Maycomb has established a hierarchy where social compartmentalization is the way of life. Men with a profession and a career are superior, while farmers are at the bottom of the social strata and are considered inferior. No matter what remarkable qualities Negroes possess, they are always s...