Have you heard of Cialdini's principles of influence from his book, "Influence: The Psychology of Persuasion?" If you're in the world of sales and negotiation, you're likely familiar with some of these principles. But the psychology of persuasion isn't easy to master. In this special throwback edition of Negotiations Ninja, Brian Ahearn shares how negotiators can leverage the psychology of persuasion and transform the way they sell. Check it out!