Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Difficult

I purchased this book to use as a text book in the classes I teach for kids.It is poorly organized and jumps around too much. Not the most logicla progression of material.The book, even though as the title suggests covers King and Pawn endings, a primer on how to checkmate with a King and Queen against a King should have been included (i.e. what does the kid do once a Pawn is Queened!).Just bad writing. Stay away from this one.