A trailer? For a book? That's new. This strikes me as a scam. 'Unleash your inner potential.' 'Wake up every morning refreshed and ready to kick ass.' Yeah, right.
But who knows, maybe they just have a large marketing department at their publisher. Doubt the book is anything more than common sense, though.
More! Better! Optimal performance, squeeze every last drop from yourself -- but is it really what we need? Perhaps it's time to change the world instead of changing yourself?..