Instruct: Classify a given review as either positive or negative.
Query: Good concept to learn, leaves you wanting more

I really like this book. It states basically the same concept my voice teacher has been teaching for a year or so, but it puts it in more understandable terms and uses better exercises that work right away. The only complaint would be it leaves you wanting more. For 2 cds, there aren't really that many exercises. I like it, but I'd recommend a sequel.