| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1980 |
|
Who Writes Science Fiction? | Savoy Books | Nonfiction | 289 |
| November 1980 |
|
Dream Makers: The Uncommon People Who Write Science Fiction | Berkley Books | Nonfiction | 261 |
| April 1982 |
|
Gestalter der Zukunft: Science Fiction und wer sie macht | Hohenheim | Nonfiction | 395 |
| May 2022 |
|
Die Weltenschöpfer Band 2 | Memoranda | Nonfiction | 173 |