This week, John interviews Keynote Speaker and Author, David Rendall. During the last fifteen years, David Rendall has spoken to audiences on every inhabited continent. His clients include the US Air Force, Australian Government, and Fortune 500 companies such as Microsoft, AT&T, United Health Group, Fannie Mae, and State FarmK Insurance. Prior to becoming a Certified Speaking Professional, he was a leadership professor and stand-up comedian. He also managed nonprofit enterprises that provided employment for people with disabilities. Listen now to learn how to boost your leadership style and channel your inner superhero using the four essential factors of effective leadership.