I am a very active technical options investor. This is one of the most useful books in my library. It’s most significant value is that it actually provides statistics on the historical performance of each candlestick pattern. These are backed up with raw data (counts, percentages) he found, and includes many other metrics. I was originally surprised at some of the very popular patterns that actually have little more than even odds of predicting direction. In addition it provides a detail explanation of the patterns, with examples, and how they are best used.