| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Nordic Runes: Understanding, Casting, and Interpreting the Ancient Viking Oracle | 978-0-89281-093-2 (0-89281-093-9) | 2003 |
| Ogam: The Celtic Oracle of the Trees: Understanding, Casting, and Interpreting the Ancient Druidic Alphabet | 978-0-89281-919-5 (0-89281-919-7) | 2002 |