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

This book contains flawed analysis (on the Möller Attack and others) which is really not acceptable. The book gives a glimpse of several major openings (to its credit) but stops its analysis arbitrarily and does not really emphasise the fundamental underlying principles which it claims to do. It is patchy and not good. I feel like Chris Ward must have written this book while he was bored one day, and it took him less than an hour...