This is a great book for two reasons. First, it clearly debunks the supposed value of almost all standard technical analysis indicators like Stochastics and RSI. Second, it reinforces the importance of determining whether or not a market or asset is in trending. The authors test many traditional indicators, not based on hypothetical profits and losses from trading various commodities, but by such things as the percentage of signals that were profitable at various time intervals after the signal. In short, most indicators they tested proved to be no better and no worse than random. But the ability to filter a market by whether or not it is trending proved to be of value. My only compliant about this book is that the timeframes for testing are too short, and the number of commodities tested is too small. I would love to see an updated version of this book. But don’t read too much into the complaint, this is a unique, value and highly instructive work. Most highly recommended.