Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Bringing chaos to order

Reading this book is like peeling an onion in that it has no well defined core. It is also like walking into a jungle without a map since it is so badly organized. His skill for manipulating equations is marginal, making things even worse. In a few places, the author confuses a necessary condition with a sufficient condition. The book also contains many logical and conceptual errors. It would have hit the garbage a long time ago if it wasn't a textbook.Having said that, the book has several good sections in it, along with a wealth of information, if you know what (and where) you are looking for. Most of basic elements are in the book. But, you have to know how to weave a coherent story out of them in order to benefit from the book. I should add that problems at the end of each chapter are quite good.