Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I would not recommend this book

This book is full of sales pitches and strategies that I doubt could be proven profitable by backtesting. I have been a swing trader and daytrader for years. I have spent countless hours developing trading systems and testing various strategies before I would use them for actual trading. If the strategies in this book really work, I would love to see the backtesting results for them in the book. The author's site has expanded from 1-2 simple advisory services years ago to a super-market of advisory services nowadays. Are they here to help you learn the profitable way of trading ? or do they feel like selling more advisory services would make them more money than trading for themselves ?