Instruct: Classify a given review into positive or negative sentiment.
Query: Would you pay for an advertising flyer?

Well, you will if you buy this book! If you're in the industry there's nothing in this book you don't already know! If you're not in the ad industry, then by all means, go ahead and buy it so you can see how clever it is to publish a self-serving eye candy full of propaganda for Saatchi and Saatchi and Kevin Roberts concealed as a book about branding!