Instruct: Classify a review as either positive or negative.
Query: Bad book

This book has a misleading title. It briefly touches the surface of MEMS in the first two chapters. The rest of the book is theory of electric motors and control systems that you can find in any standard book. Nobody has built a MEMS motor yet and when that happens, the principles will be totally different as those used by the standard induction motors we know today. That's why the book is bad: describes old electric motors that cannot be built with MEMS technology. This book is non sense.