Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your time

I have this book and it sits on my bookself collecting dust. It was a required text for school and I could never use it. It is poorly laid out and the descriptions of the systems are not in depth enough to actually give you a decent understanding of the material. The systems are out dated with current technology unless you are a general aviation mechanic. For the few systems that are in detail, the writer makes it very difficult for the beginning student to understand. When I taught I tried to lead the other students through the text and I found it easier to just use the book as a door stop than a teaching tool. The rest of the books in this series are wonderful, but I would never use this one again.