Do NOT waste your time with this book. There are so many spelling and grammatical mistakes that if the content made any sense, you might not trust it. However, the content also is useless. All of the author's "insights" are anecdotal. He doesn't give any data, just anecdotes. What would be useful would be a log of the author's bets along with his thinking and then the results along with a conclusion of why he was right or wrong. It would be interesting to know how successful the author has been, yet none of that is included.