In the book The Perks of being a wallflower by Steven Chbosky, there are many symbols. I need 7 Important symbols in the book and their importance.

In the book The Perks of being a wallflower by Steven Chbosky, there are many symbols. I need 7 Important symbols in the book and their importance. Particularly symbols that can be used as an object, for example Mixtapes are a symbol that can be used as well as a physical object.