Instruct: Classify the given Amazon review as either positive or negative.
Query: Excellent Explanations

I recently began reading this book, and I find it nothing less than astonishing. Its large amount of tables, figures, and charts help to really explain the text. I am a younger person, and really didnt expect to understand rotary wing flight, but this book has really made it possible for me. This book is a great bok for beginners as well as experienced flyers. Overall I think this book is an excellent buy.