Rule of thumb: Any chapter or book with a title similar to “Unleashing the power of (blah)” will be utterly useless. It will in fact be negative learning, as you will need to purge your mind of anything you read from it.
(The same goes for “Learn X in 20 minutes”, or whatever we’re down to these days. Learn Java in 20 Femtoseconds? Yeah, you can totally do that.)