Keep in mind that symbols aren’t always necessarily objects, they can be events, people, or places, too. Throughout your reading, take notes on specific objects, events, themes, ideas, etc. that are mentioned throughout the novel. The title – To Kill a Mockingbird – is actually symbolic of characters’ innocence (symbol: the mockingbird) being killed. Boo Radley can also be considered symbolic of Jem and Scout’s increasing maturity.