TO KILL A MOCKINGBIRD

Boo Radley is an example of a human "mockingbird". He has spent his entire life as a prisoner of his own home because his father was overzealous in punishing him for a childhood mistake. Boo Radley observes the world around him, causing no harm to anyone, and then saves Jem and Scout's lives when Bob Ewell attacks. The sheriff determines that Ewell's death will be ruled an accident to avoid forcing Boo to go to trial, even though Boo killed him to protect the children. Atticus agrees, and wants to make sure Scout understands why this little white lie must be told. She replies saying of course she understands, putting Boo on trial and in the public sphere would be like killing a mockingbird. The mockingbird represents true goodness and innocence that should always be protected.