I get a lot of emails from people asking me about the psychology of persuasion. Learning about the ways people (honestly and dishonestly) influence you is one of the best things to learn early in life. But it's never too late. The go to book on the psychology of persuasion is Robert Cialdini's Influence.

Understanding psychology is a crucial part of being a successful marketer. What I've discovered is that the most powerful advances in content marketing don't come from "hacks," "tricks," or "techniques," but from science-backed psychology. One of the most powerful and interesting areas of psychology deals with excitement.