Best book for kids curious about science but not yet into the thick reading. Each character/element is described in a clever and informative way. As a parent I learned A LOT. I do think these books are aimed at older kids in the 9-10 years old range or older. A couple of the descriptions were not meant for young ears (ex. "this element is used as part of a lethal cocktail for death row" - I just skipped over that part). We love all of these Simon Basher math and science books.