Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Don't waste your money or time

I read all the -ve reviews of this book and still decided to give it a shot. I bought the book and tried real hard to read the first 4 chapters. It is so confusing that after a little while I just couldn't study anymore. The so called "Skimming" technique made my head spin, as I could not get a handle of what the book is trying to teach. In the end I returned this book and got "The offical TOEFL guide" (ETS). I think that's all you need to pass the test. The layout is simple, divided into 4 categories: Reading, Writing, Listening, and Speaking. (exactly how the iBT is presented) I think the official guide is worth every penny, so get it instead.