| title | ISBN-13 | year of publication |
|---|---|---|
| The Black Timeline of Massachusetts | 978-0-9714462-1-2 | 2003 |
| The Hidden History of Massachusetts | 978-0-9714462-0-5 | 2003 |
| The Hidden History of New York | 978-1-892705-00-6 | 1998 |
| The Hidden History of Washington, DC | 978-1-892705-02-0 | 2004 |