Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A short, cheap version of his classic works

This book looks like a short, cheap version of his classic "Technical Analysis of the Futures Markets", which I rate as a 5 star book. If you want to learn technical analysis, skip this book, spend a little more money and buy his classic instead, you'll get a deeper understanding (which you will need if you want to survive and prosper...)