CLS Required Reading | Customer Service Books

The Customer Loyalty Specialist (CLS) Certification Program requires that participants read specific texts and use our own Study Guide while preparing for our examination. The books required may be seen below and may be purchased online at Customer Service Bookstore.com.

1. Delivering Knock Your Socks Off Service by Kristen Anderson and Ron Zemke. ISBN: 0814479707
2. Building Great Customer Service by Colin Shaw and John Ivens. ISBN: 1403939497
3. Customer Satisfaction is Worthless, Customer Loyalty is Priceless by Jeffrey Gitomer ISBN: 1885156730X
4. How to Talk to Customers: Creat a Great Impression Every Time With Magic by Diane Berenbaum and Tom Larkin. ISBN: 9780787987527
5. Purchase these four required books at CustomerServiceBookstore.com.