| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2009 | 978-0-9562313-0-7 | Liz Egger · James Egger | The Complete Guide to Nudism & Naturism |
| 2015 | 978-0-9562313-2-1 | Liz Egger · James Egger | The Complete Guide to Nudism, Naturism and Nudists: Everything You Need to Know About Nudism. (And why you should try it) |