Here are my hints for you to use while actually completing YOUR OWN HOMEWORK. Don't be a slacker, read a book, it won't kill you and you might learn something. Geeeeeeezzzzz.
#1) It is a generously short book.
#2) An all time classic and just two days ago the Harper Lee was given the Medal of Honor from the president for writing it.
#3) Be a man and read the book already, impress yourself.
#4) Go to dictionary.com and look up the word analogy and that might help you with your question once you have READ THE BOOK!!!!
I can't believe the people at the bottom of this list are implying that the title has nothing to do with the theme of the book.
Atticus Finch: I remember when my daddy gave me that gun. He told me that I should never point it at anything in the house; and that he'd rather I'd shoot at tin cans in the backyard. But he said that sooner or later he supposed the temptation to go after birds would be too much, and that I could shoot all the blue jays I wanted - if I could hit 'em; but to remember it was a sin to kill a mockingbird. Well, I reckon because mockingbirds don't do anything but make music for us to enjoy. They don't eat people's gardens, don't nest in the corncrib, they don't do one thing but just sing their hearts out for us.
Harper Lee summarizes the story in the title -- To Kill a Mockingbird. A mockingbird represents innocence. The story tells us of an innocent man who is sentenced due to racial prejudice. The plot is set in an era with severe racial injustice.
The book is full of analogy and metaphor. Was Boo Radley not a mockingbird that did no harm to nobody and that is why Atticus protected him from the torment of the children.
The farmer who went to the courthouse to Lynch the prisoner, embarrassed that Scout announced to the world that he was paying Atticus off in hickory nuts because he was painfully poor. It goes on and on. That's all I got to say about that.
And although generously short is relative I am holding a first edition in my hand and it is all of 287 pages, that's pretty short.