To Kill a Mockingbird 

In the book, To Kill a Mockingbird, by Harper Lee, the protagonist, Scout, lives in a small southern town during the Depression. In this small southern town there is a widely know legend that there is a man named Boo Radley that lives in a basement, eats cats and has stabbed his father with a pair of scissors. Scout, her brother Jem and their friend Dill are equally terrified and intrigued by this shady character, so when the day comes that Boo gives Scout a blanket (without them noticing) while waiting for a fire to shimmer down on a cold winter night, they are nothing short of flabbergasted. The lesson of this encounter with Boo was that Scout should treat Boo less like an animal, and more like a human being. Scout should know that there is nothing sinister about giving a blanket to a girl in the cold. 

The deeper theme behind this lesson is not to judge a book by its cover. Boo is a good example, but there are many others. Another example is that Scout’s father, Atticus, is a lawyer supporting a black man. In order to win the case Atticus will have to make the jury treat the man like any other human being. This theme was also shown in the beginning of the book when a boy was treated like dirt because of the poverty of his family, but when Atticus had a conversation with the boy he treated him with respect.