| title | ISBN-13 | year of publica- tion |
|---|---|---|
| On the Road: The Quest for Stamps | 978-0-88219-025-9 | 1991 |
| Scott 2005 Catalogue of Errors on U.S. Postage Stamps | 978-0-89487-368-3 | 2005 |
| Scott 2006 Catalogue of Errors on U.S. Postage Stamps | 978-0-89487-369-0 | 2005 |
| Stamp Collecting | 978-0-88219-030-3 | 2009 |
| Stamp Investing | 978-0-88219-029-7 | 2009 |
| The Buyers Guide: An Analysis of Selected U.S. Postage Stamps | 978-0-88219-031-0 | 2000 |
| The Wild Side: Philatelic Mischief, Murder & Intrigue | 978-0-88219-024-2 | 1990 |
| Top Dollar Paid!: The Complete Guide to Selling Your Stamps | 978-0-88219-022-8 | 2009 |