Instruct: Classify a review as either positive or negative.
Query: Nothing new to say...

and quite a few stupid things, too, including hitchhiking as a viable transportation method. Many other books will give you much more info than this one. The real goal of this book is in the last chapter (yes, I read it all) - buy less. Buy less because it is better on the Earth, on your budget & on your health. I suggest you save on all of the above and don't buy this book.