A metaphor in glass castle can be seen by the title. The glass castle can be seen as a Rex walls, Jeanettes father, false hopes and dreams for their family. He carries around blueprints for the glass castle he wants to build. The author probably used this as the title for the book because throughout her child hood she was living in a goofy world growing up.

I think this was a very smart title because it was prevalent throughout her story.

The importance of education in this novel is very importanythe family values education much differently Rex walls seems to want to teach them perseverance and to be tough, this can be seen from when Rex walls teaches Jeanette to swim from throwing her into the water and making her figure it out on her own.

Jeanette walls is the protagonist but also a round character she changes throughout and struggles with actual challenges.
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