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.
The books came in a packaged box which stinked a lot. It was so dirty even. The books were in nice condition. The price is too high, which I think should not be this much when it comes to language books. Cos at the end its a learning element which is a basic need.