Instruct: Classify Amazon reviews into positive or negative sentiment
Query: So so opening book

This is a run of the mill opening book. Most chess opening books are junk and this is no exception. The books lacks text on common tactical themes or endgames that result from the openings that make an opening book great. Some of that games reviewed lack basic text on the strategic plans for each side. Being short on ideas and strategy this leaves only the game theory to look at and many games are lacking the insight a good annotator could provide. The writing is also dry at best.As a class player and chess coach, I would not recommended this book.