6 books
Heart & Soul
Customer Rules, The: The 14 Indispensible, Irrefutable, and Indisputable Qualities of the Greatest Service Companies in the World
The Customer Rules: The 14 Indispensible, Irrefutable, and Indisputable Qualities of the Greatest Service Companies in the World
Hardball Selling
Headhunters Confidential!
169 Ways to Score Points With Your Boss