Instruct: Classify Amazon reviews into positive or negative sentiment
Query: only for folks in advertising

I have no knowledge of the advertising business and no interest in learning how to get ahead in that world. You wouldn't know from the book's cover that the author's experience and advice are narrowly limited to that field. As an outsider, I could not understand some of the terminology and concepts. That is in part because of the industry niche, and also because of the British vocabulary (Persil Automatic?).There's certainly value in motivational books like this, to get you all fired up when you need inspiration. It's just that this one will only be helpful to those in advertising, and specifically folks who work in small ad agencies and understand that language and culture. Outside of that narrow culture, many of the recommendations would prove disastrous indeed to one's career.