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Review title: Warning!!!! Don't Buy Used
Product review: I purchased this book used on Amazon and started reading it with great anticipation. I covered the first 80 pages in about an hour and went online to enter my code to take the online test. However if you buy the book used then the code won't work. AND the publisher won't sell additional codes online so the only way to take the online test is to buy the book new. Great, now I have a $4 paperweight or doorstop and it will be 5 days before my new copy arrives and I can pick up where I left off. So far the book seems really interesting, however don't waste cash on a used version. Somewhat of a cheap trick on the publisher's part.
