The Ultimate Question 2.0 (Revised and Expanded Edition): How Net Promoter Companies Thrive in a Customer-Driven World
Scaling Up : How a Few Companies Make It...and Why the Rest Don't (Rockefeller Habits 2.0)
Chief Customer Officer 2.0: How to Build Your Customer-Driven Growth Engine
In Pursuit of Delight: Improving Net Promoter Scores through the Customer Experience
Customer Experience 3.0: High-Profit Strategies in the Age of Techno Service