Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book is a must buy!

If you are looking at this book review it's probably because you want to see if this book is worth buying. Well it is!!!IT IS "a highly instructive" as GM Larry Evans said and it is great for improving tactical play. If you want more than just tactical puzzles but explanations as well then get this book!. Although it is part 3 in the "comprehensive chess course series" this book is great stand-alone. It may even make you want to purchase the rest of the "comprehensive chess course series"!!!. This book should be in any improving player's library and after going through it you will notice how your tactical recognition is improving, and the book is so well structured that you can go through it many times within a short period of time. Pehaps a lesson a day and with nine lessons in the book that's 9 days and you can do the whole thing over and over again improving each time. Understand tactics don't just do puzzles...get this book!