To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
We've always enjoyed Ahn Do's books for our children. Our boy loved Ninja Kid and Weirdo. This series nothing but political propaganda, however. It's extremely irresponsible for such a trusted children's author to engage in such ideological brainwashing. Very disappointing.