Instruct: Classify the given Amazon review as either positive or negative.
Query: Can you improve your skiing from a book?

I think some of us can improve our skiing from a book and most of us can't. If you're one of the lucky ones who can improve from reading, then this book and Harald Harb's latest book are your best bets. This year I checked out all the books my local library had on skiing. Most of them were hopelessly outdated. Thanks to these two books and watching the Olympics I've had a couple of breakthroughs with my skiing. I credit them with a drastic improvement in Mogul skiing and high speed downhill skiing. Thanks Lito.