| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2002 | 978-1-931109-01-7 | Katharine C. Giovanni · Ron Giovanni | The Concierge Manual, Second Edition |
| 2004 | 978-1-931109-06-2 | Connie Domino | Develop Irresistible Attraction |
| 2007 | 978-1-931109-07-9 | Katharine C. Giovanni · Ron Giovanni | The Concierge Manual: A Step-by-Step Guide to Starting Your Own Concierge Service or Lifestyle Management Company |
| 2009 | 978-1-931109-08-6 | Katharine C. Giovanni | Going Above and Beyond: Reach the Pinnacle of Customer Service by Learning How to . . . Think and Act Like a Concierge |
| 2019 | 978-1-931109-11-6 | Katharine C Giovanni | The Concierge Manual: The Leading Resource for Building Your Successful Concierge and/or Lifestyle Management Company |