| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Go MAD. the art of Making a Difference - A Collection of Thoughts to Amuse and Inspire You: 171 Ways to Make a Difference - A Collection of Thoughts to Amuse and Inspire You | 978-0-9537284-0-4 (0-9537284-0-4) | 1999 |