I really like what he says a the beginning of the book:
"If you take away anything from this book, make it these points:
1. Trading profitably is about mathematical expectation;
2. Knowing yourself is more important that what you know."
This is a great place for a trader to start, I never got anywhere until I understood these two pieces of advice. Michael might sound a little esoteric for some people but I personally thing that his advice is spot on. He is also a rare combination of successful trader that knows how to teach and knows a lot of the best traders in history on top of that.
My favorite thing is that he has been able to explain many of Ed Seykota's concepts in a much more accessible way.