Sandler Enterprise Selling: Winning, Growing, and Retaining Major Accounts by Brian W. Sullivan, David Mattson 4 h 44 min
Sandler Success Principles: 11 Insights that Will Change the Way you Think and Sell by Bruce Seidman, David Mattson 3 h 5 min
The Sandler Rules: Forty-Nine Timeless Selling Principles… and How to Apply Them by David Mattson 3 h 55 min