| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Memorize in Minutes: The Times Tables | 978-0-9651769-6-5 (0-9651769-6-7) | 2000 |
| Memorize in Minutes: The Times Tables | 978-0-9651769-5-8 (0-9651769-5-9) | 1998 |
A. B. · A. W. · A. Walker · Alan Walker · B. Walker