Stephan Schiffman
Cold Calling Techniques: That Really Work
The 25 Sales Skills: They Don't Teach at Business School
The 25 Sales Skills: They Don't Teach at Business School
The 25 Most Common Sales Mistakes: . . . And How to Avoid Them
Closing Techniques
The Ultimate Book of Sales Techniques: 75 Ways to Master Cold Calling, Sharpen Your Unique Selling Proposition, and Close the Sale
The 25 Sales Skills: They Don't Teach at Business School