But in this apparent simplicity, the book delivers a wonderful exposition of so many great memories, ideas, and dreams.
But in this apparent simplicity, the book does deliver a wonderful exposition of so many great memories, ideas, and dreams.
These would be proper ways to write it, unless it was a question, in which case you'd write:
In this apparent simplicity, does the book deliver a wonderful exposition of so many great memories, ideas, and dreams?
Though you could argue that does the book is just an inversion of the book does, I still think that it's not very natural to write it that way at all. I usually only see does used before the subject if you are asking a question. Example:
Does the book read nicely?
Vs.
The book does read nicely.
Though this isn't always a rule, it's generally considered to be more grammatical in my experience.