5 stars: Absolutely outstanding. This book stayed with me for a long time.
4 stars: Extremely good. I thoroughly enjoyed the book.
3 stars: It was good. Although not a favorite, I would still recommend.
2 stars: Certain aspects are redeeming, but overall was not a fan of the book.
1 stars: Don’t bother reading.
Think of a bell curve—the majority of books will fall in the 2-4 range. Only the few truly outstanding and the few truly awful lie in the extremes.