Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Top book on selling

I've only read this book once. I'm more of a copywriterthan a one-on-one salesperson, though I have to do that tosell my services often enough.The thing that stands out to me is this unoriginal thought:Great salespeople get that way not by making huge breathroughsin one area but by making small, incremental improvementsin dozens of areas.Excellent book. It tries to cover nearly every aspect of whatmakes a great salesperson and does an admirable job. It endsup being long though and for that reason may be a betterreference book than a straight-through reader.