Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An Essential Book for a Dancer

As a dancer, I've always been taught, and do believe, that knowing exactly what those tounge twisting French terms means helps you to execute the steps. If you don't know the names of the steps, you can't do the combonations, you can't dance properly. This book definately helped with a couple of the creaky terms that I wasn't too sure about, and was especially useful when rehearsing alone without a partner or ballet master. Gail Grant's book is excellent for both ballet beginners, advanced dancers, and balletomanes.