| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1998 | 978-1-885184-00-9 | Darryl Hintonblaker | Germany 1872-1900: A Philatelic & Postal History Handbook of Germany & Her Colonies |
| '' | 978-1-885184-01-6 | A Harper | Philately of the Third Reich: Postage and Propaganda |
| 2002 | 978-1-885184-09-2 | Wolfgang Baldus | Philatelic Witnesses: Stamps of Revolutions |