Instruct: Classify Amazon reviews into positive or negative sentiment
Query: More than you ever thought about air travel

This book, by noted airline industry author Stephen Barlay, is a fine introduction to the *entire* world of commercial air travel. In addition to explaining the concept and mechanics of flight, Barlay reviews the reasons why safety is not as high a concern for many airlines as convenience and economy, the phenomenon of what I call "Airportland," do's and don'ts when flying, air traffic control, and finally--the reason I bought this book--what causes airplane crashes and how they can be prevented or their effects mitigated. The book includes a section of black-and-white photos of some little-known, but important, crashes. Especially useful and surprisingly difficult is the quiz about airline safety. A lot of what you think you know is wrong! Despite including tons of information, the style is quite readable. I highly recommend this book.