| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1980 | 978-0-913896-06-8 | L. Sprague de Camp | The Ragged Edge of Science |
| 1981 | 978-0-913896-19-8 | George H. Scithers · Darrell Schweitzer · John M. Ford | On Writing Science Fiction: The Editors Strike Back |
| '' | 978-0-913896-20-4 | L. Sprague De Camp | Hand of Zei |