Influence is about six principles of persuasion useful for sales, marketing and negotiation. Professor Robert Cialdini says certain triggers can influence human decisions almost automatically. The six principles are: reciprocity, consistency, social proof, liking, authority and scarcity.
Pre-Suasion shows a new side of influence. It's about everything that happens BEFORE you ask someone to say yes to your proposal. Professor Robert Cialdini has distilled hundreds of scientific studies to prove that how you FRAME a message from the beginning is crucial to its success.