Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not an "How to book..."

Sorry this book dont teach nothing, is full of examples but the method for calculation is absolutely not present, there is even a chapter called "How not to calculate..." ! thank you! I bought this book to learn how to calculate tactics!But paradoxically the only advice on how to calculate is given in this 3 pages (suggestion borrowed from Kotov, Tisdal and Dvoretsky) but without any example, method or exercice.If you want some nice commented examples and few exercises here and there go for this book, if you want to improve how to calculate and become good at it, look somewhere else.Maybe Practical Chess by Nunn is a good starting point.Being a good player dont mean being a good teacher.