Instruct: Classify Amazon reviews into positive or negative sentiment
Query: pretty pictures, but no substance

I give the 2 stars for the illustrators. They did a superb job trying to represent the ideas put on paper by Hawking. However the text on the other hand was overly simplified to appeal to a larger, non-science centric audience, who don't understand the complex formulas and ideas the govern the universe. He went too simplistic in this book and left out the explanations for what he says. He claims something is true, but never explains why or how. He never goes into the explanation of the illustrations so looking at some of them leaves me wondering "what does that mean?" Also, there are way too many illustrations and not enough text.