Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Beyond Speculation

Three things that make 'Influence' more useful than 95% of marketing books:- It is based upon observation and experiment, not just the author's opinions.- Cialdini uses examples from marketing, advertising, cartoons, and the real world to illustrate his points.- The book is not a new business pitch from an ad agency or a front for a consulting group. Cialdini is not out to sell you anything (other than this book). He just wants to share these fascinating things he's learned.Each chapter covers one specific 'Weapon of Influence'. It's easy to read in bite-size chunks, and Cialdini's insights are broadly applicable in marketing whatever you've got. 'Influence' is perhaps the most useful book on advertising and marketing I've come across since Luke Sullivan's 'Hey Whipple!'.