Here's where you can find all the books that fit on the Cloud 9 Shelf. These books are what I consider to be worthy of a 10, or even if they aren't perfection, I consider them to be the kinds of books that can bring someone to Cloud 9. Pretty much these are the best books I've reviewed or read, and I have gathered them in the same location for your convenience.
The "Harry Potter" Series
The "Percy Jackson and the Olympians"Series