Robert B. Cialdini 

Influence established Cialdini as the world's foremost authority on the science of persuasion, winning plaudits from such figures as Dan Pink, Chip Heath and Tom Peters. In Pre-suasion, Cialdini builds on his investigations into the subtle world of influence to reveal that the best persuaders succeed not only because of what they say or how they say it, but because of what they do in the moment before they deliver their message. In the process he draws on a series of compelling case studies and a profound understanding of human psychology to offer a ground-breaking work that is both fascinating and brilliantly practical.

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