C. G. · C. Giovanni · K. C.
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Going Above and Beyond: Reach the Pinnacle of Customer Service by Learning How to . . . Think and Act Like a Concierge | 978-1-931109-08-6 | 2009 | |
| The Concierge Manual: A Step-by-Step Guide to Starting Your Own Concierge Service or Lifestyle Management Company | 978-1-931109-07-9 | 2007 | Ron Giovanni |
| The Concierge Manual, Second Edition | 978-1-931109-01-7 | 2002 | " |
| The Concierge Manual: The Leading Resource for Building Your Successful Concierge and/or Lifestyle Management Company | 978-1-931109-11-6 | 2019 | |