Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Alot of general info but not much specific

Book gives a broad overview of substations, but not very detailed. If you have anything more than a passing interesting how substations work this book will not be much use to you. I started a new job as a commisioner and this book was of little benefit to me. Not enough details on the inner workings of power protection and switchgear.