I'm somewhat put off by the similarity of the ideas in this book to the ridiculous "The Secret" with its "Law of Attraction." I found this out through reviews of the book though, and the similarity may well be superficial.
There are many many free and legal books available, so it's not especially interesting to point to just one. What's interesting is to know which of them are worth reading (and, preferably, why).
Go ahead and read it. You'll know why I shared it (it's only 30 pages long).
Honestly, not exactly the most well written or enlightening thing I've ever read...
Not when such classics as Sherlock Holmes [1] are available free :)
I'm quite prepared to read something when someone I know recomends it or when someone I don't recomends it and gives reasons. But there are a whole load of choices out there so I see no reason why I'd pick this one. 30 pages isn't long but it's also not short.