| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The ABCs of Handwriting Analysis: A Guide to Techniques and Interpretations | 978-1-56924-630-6 (1-56924-630-0) | 2001 |
| The ABCs of Handwriting Analysis: The Complete Guide to Techniques and Interpretations | 978-1-56924-346-6 (1-56924-346-8) | 2005 |