I was sceptical about buying this book. I was afraid it might be a shallow change-your-life-with-these-generic-tips book. Its low price and its remarkably good reviews persuaded me to give it a try nonetheless... and boy do I regret it.
The book's "advice" is integrated in some weak surrounding story. The advice is presented to the reader in the form of 10 "secret scrolls." The only description I see fit for describing these scrolls and their advice is ridiculous. It is so generic, the word "Salesman" could be substituted for virtually anything in the title of the book. There is no scientific background to any of the "advice," it is not based on some deep insights someone got over years of work, it is merely cheap "don't just give up easily"-style standard advice.
The book really managed to make me stop reading it when a Christian religious component was drawn in. Before it, it was just a cheap rip off to the reader, after this I felt actually insulted by the author.
This is one of the very worst books I have ever seen, and I want to dissuade anybody who might fall for the tons of positive reviews that have managed to fool me. The only great salesman is the author, who manages to sell a book like this as if it contained anything valuable at all. Congratulations to this scheme, condolences to all who fell for it, like me.