Instruct: Classify an Amazon review as either positive or negative.
Query: What the -- ????

Not only is this book vindictive and petty, it is also boring. Not only is this book vindictive, petty and boring, it is so poorly edited that if I had a dollar for every glaring grammatical or spelling error on its pages, I'd be able to afford a lot more books on the same subject that are much more informative and entertaining. Interestingly, I noticed on the inside cover that my copy had been revised. Why did anyone bother? DON'T WASTE YOUR MONEY OR YOUR TIME!