| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Gemstone Buying Guide, Second Edition: How to Evaluate, Identify, Select & Care for Colored Gems | 978-0-929975-34-4 (0-929975-34-0) | 2003 | Renee Newman · Ren'e Newman |
| Ruby, Sapphire & Emerald Buying Guide: How to Identify, Evaluate & Select These Gems | 978-0-929975-41-2 (0-929975-41-3) | 2011 | Renee Newman · Ren'e Newman |