i be really disappoint by this piece of work . it be quiet shallow and keep repeat itself and be mostly not exact and sometimes on the verge of be wrong . i think it make for elementary school and especially because it keep repeat itself over and over again while leave large gap . a young kid might actually enjoy it and learn from it and but a good way to make a kid appreciate theoretical physic be book like a short history of time or the tao of physic . if you be familiar with the topic on a very basic level and you would not gain any new information or view from this series . don not waste your time with it . nice eye candy though .