Sean C. Castrina is author of 8 Unbreakable Rules for Business Start-Up Success and the soon-to-be-released, 8 Unbreakable Rules for Small Business Success. He is also founder of newbizcoach.org. A...visualizza altroSean C. Castrina is author of 8 Unbreakable Rules for Business Start-Up Success and the soon-to-be-released, 8 Unbreakable Rules for Small Business Success. He is also founder of newbizcoach.org. A successful business coach and a true entrepreneur, he has started over 15 successful companies over the last 18 years. His companies have ranged from retail, direct mail marketing and advertising to real estate development and home services. Sean is a sought after speaker and can speak with authority on what it takes to start, sustain and grow a business.visualizza meno