Crisp: Sales Training Basics, Third Edition: What You Need to Know About Selling (Crisp Fifty-Minute Series)
Selling: Helping Customers Buy
Crisp: Building and Closing the Sale, Revised Edition: Proven Methods for Closing Sales (Fifty-Minute Series)
Calming Upset Customers, Third Edition: Staying Effective During Unpleasant Situations (50-Minute Series)