| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Flip Quiz History: Age 7-9 | 978-1-902947-70-9 (1-902947-70-3) | 2001 | Brian Williams |
| Flip Quiz History: Age 11-12 | 978-1-902947-69-3 (1-902947-69-X) | 2001 | " |
| Flip Quiz History: Ages 9-10 | 978-1-902947-65-5 (1-902947-65-7) | 2001 | " |