| Reference | Title | Edition | Serie |
| GR5101 | The Ultimate Unofficial Collector's Guide to D&D Volume One | D&D | Misc. |
| GR5103 | The Ultimate Unofficial Collector's Guide to D&D Volume Three | AD&D 1st Edition | Misc. |
| GR5102 | The Ultimate Unofficial Collector's Guide to D&D Volume Two | D&D | Misc. |