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.
Very good book for children. It tells in detail that how something works; even how a sharpener sharps a pencil! The illustrations also makes it clear to understand the working of machines. I rate it 5 stars. Surely buy this book on Kindle.
This book is the best ever invention book! And if there was another book just like this mummy would freak out and bum my gummy jumpy dvhubf udchurhvr unfufhfuhvr hudhciehciehciechieciehcuehcue hdhucheucheuc