The author highlights important questions in psychology of trading but fails to give a clear answer and/or very least to speculate on the subject in comprehensible terms. Make no mistake, I have a PhD and CFA with 10 years of trading experience but I found this book very difficult to comprehend.
The first two hundred pages are full of cumbersome mix of thoughts on amateur trading psychology, biology, physics, and computer. Imagine reading two hundred pages of something like "the mental environment would correspond to the electrical energy that makes the computer run as well as store and carry the various forms of information the computer is designed to handle and the computer hardware (physical, mechanical, atoms and molecules) would correspond to the brain.
The nondimensional quality is probably the hardest concept to grasp, about the nature of energy, because even though the energy is nondimensional, it can take some form that is visible to our eyes".
Fortunately, the last twenty pages are better read. I would advice to read only the last 13-17 chapters on "How" to become a discipline traders and skip the first 200 pages on "Why"
In summary, I gave this book three stars
* for highlighting importance psychology in trading
** for attempting to address the issue on the last 20 pages
No stars - for making this book artificially 200 pages thicker than it should be.