Stephan Schiffman's Telesales: America's #1 Corporate Sales Trainer Shows You How to Boost Your Phone Sales
Stephan Schiffman is America’s most renowned sales trainer. He is the author of numerous bestselling sales books, including Cold Calling Techniques (That Really Work!) and The 25 Most Common Sales Mistakes. Mr. Schiffman is also the president of DEI Management Group, Inc., and has trained more than 300,000 salespeople. He lives in New York City.