If this is how you've presented the question, Its a bit hard to answer it when one hasn't read these books. It'd be best if you'd put both books into a summary for us to go based off of, at most.
A Glossary, is the name for the list of important words at the end of a non-fiction work. They are meant to help the reader with understanding the material and can sometimes appear in fiction work as well.
Answer:
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