Sean Castrina is a serial entrepreneur, having started more than 20 companies over the last 20 years, and still seeks to launch a new venture annually.  He is the author of 4 bestselling business books including 8 Unbreakable Rules for Business Startup Success, The Greatest Entrepreneur in the World, Developing The Entrepreneur Within and World’s Greatest Business Plan. He hosts one of the most popular business podcasts on the planet- The 10 Minute Entrepreneur.  We had a chance to speak with him about how his personal brand helped to build his businesses.  Learn how he did it, and why he says "making money wasn't that hard...once I created a brand where people trust my advice".