Christopher Cline
10 Treasure Legends! Alabama- 10 Treasure Legends! Arizona
- 10 Treasure Legends! Arkansas
- 10 Treasure Legends! California
- 10 Treasure Legends! Colorado
- 10 Treasure Legends! Connecticut
- 10 Treasure Legends! Delaware
- 10 Treasure Legends! Georgia
- 10 Treasure Legends! Kansas
- Comickles
- Commander's Cacheology Encyclopedia of Treasure Symbols
- Commander's Cacheology Workbook