These count as standalone. Nothing in the rules says they must be fiction.
And yes, the review book is my thoughts on the books in question. They should be taken with a huge grain of salt as they're opinions and are obviously going to be influenced by whether or not the work in question appealed to me personally. I'd be being dishonest otherwise.
I don't see where any of them are superperformers though. Are you confusing me with someone else?