Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A history tour of material innovations and inventors

Fenichell is highly readable. He has appreciation for inventors who have developed new materials for the service of society. His book offers a balanced perspective, with engaging anecdotes.A mild criticism concerns organization. The book is a sequence of anecdotes about different plastics. Why one is mentioned before another is not clearly explained. As a result, the book feels like journalistic stream of conscious in appreciating materials, their purposes and inventors. This is respectful of the subject, but it is a bit hard to put into overall context and see a big picture.