9 best grads

"Grads" in the context of Chapter Books Readers and Children's Books doesn't refer to a specific term or concept I'm aware of. It's possible that "grads" could be a typo or a misinterpretation of a different term or concept related to literature or children's books.If you have a specific question or need information about a particular topic related to literature or children's books, please provide more context, and I'll be happy to assist you further.