Harper Lee addresses quite a few social issues throughout her novel. She addresses poverty, discrimination, and injustice. Poverty is shown in the lives of a few of the characters: the Cunninghams and the Ewells. It is apparent that poverty is rampant during this time because the setting of the story takes place around the time of the Great Depression. It is common knowledge that many people suffered from the effects of the depression through extreme poverty and the way they live their lives.
Another example of social issues is the issue of discrimination. It is clear, when Atticus takes the case of Tom Robinson, that he is not guilty. Atticus knows that Tom Robinson was most likely arrested due to the accusation of a white man. Had a black man accused a white man of rape, during this time, it would have been overlooked. Tom eventually is found guilty and it is because he is black despite the evidence that he is innocent.