| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Vitamin O: Why Orgasms are Vital to a Woman's Health and Happiness, and How to Have Them Every Time! | 978-1-63220-308-3 (1-63220-308-1) | 2015 |
| Vitamin O: Why Orgasms are Vital to a Woman's Health and Happiness, and How to Have Them Every Time! | 978-1-61608-311-3 (1-61608-311-5) | 2011 |