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.
Sapiens is about how we went from being simple primates 2.5 million years ago... to walking on the moon. Yuval Noah Harari explores the Cognitive, Agricultural and Scientific Revolutions, which made us who we are today. He says common myths like money, laws and nations hold human societies together.
Never Split the Difference shows how to win negotiations and communicate more influentially. Chris Voss perfected his techniques over 25 years at the FBI, negotiating with kidnappers and terrorists. He says we should work with emotions not just reason, demonstrate empathy, use open-ended questions and educate ourselves about cognitive biases.