| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Santa Claus: A Biography | Paperback | 978-0-7710-1668-4 | 2007 |
| Santa Claus: A Biography | Hardcover | 978-0-7710-1532-8 | 2005 |
| The World Encyclopedia of Christmas | Paperback | 978-0-7710-1535-9 | 2004 |
| The World Encyclopedia of Christmas | Hardcover | 978-0-7710-1531-1 | 2000 |