| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Photograde: Official Photographic Grading Guide for United States Coins, 19th Edition | 978-0-9742371-5-2 (0-9742371-5-9) | 2005 |
| Photograde: Official Photographic Grading Guide for United States Coins | 978-0-307-99361-8 (0-307-99361-2) | 1996 |