“But in the book," I say, "the mockingbird is supposed to be a symbol of innocence. That's why it's a sin to kill one." "Who says it's a symbol of innocence?" asks Mort. "Teachers," I tell him. "Book reviewers, critics --" "Wikipedia," Elena calls from behind the window display.” TeacherBooksReadersWikipediaBookwormTo Kill A MockingbirdI Kill The Mockingbird Book:I Kill the Mockingbird Source: I Kill the Mockingbird