Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Gimicks that may work selling pencils, but...

They sure won't work if you are selling big ticket items, such as houses, cars, planes, factory equipment or the like.If you are looking for a difficult to master but good book, go to Rackham's SPIN selling. It is both research based AND effective. Dawson is just a rehash of every sales gimmick you or he has ever read about.If you look, you will see I liked his negotiation gimmicks -- but only if tempered with other's work to set tone and style (and more). In sales, unlike negotiation, the gimmicks tend to be instant death.