| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2000 | 978-1-930764-00-2 | Gina Wickwar | The Hidden Prince of Oz |
| 2002 | 978-1-930764-02-6 | Peter E. Hanff ยท Douglas G. Greene | Bibliographia Oziana: A concise Bibliographical Checklist of the Oz Books by L. Frank Baum and His Successors |
| 1993 | 978-1-930764-04-0 | Rachel Cosgrove Payes | The Wicked Witch Of Oz |