The document discusses symbols in To Kill a Mockingbird through the examples of the snowman built by Jem and Scout and the Radley house. The snowman, made of both dirt and snow on the inside and outside respectively, symbolizes how people are fundamentally the same regardless of outward appearances like race. The mysterious Radley house represents the fears and curiosity of Jem and Scout towards the unknown. Both objects are used by the author to convey themes of racism, fear of the unknown, and the deceptiveness of appearances.