Stephan Schiffman is the author of High Efficiency Selling, a Simon & Schuster book.
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LEARN THE SALES SECRETS THAT GET RESULTS! 25 Years Secrets of Highly Successful Salespeople is a must-listen for all salespeople. Stephan Schiffman, America's Number One Corporate Sales Strategist and President of D.E.I. Management Group, an internatio... SEE MORE