| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1969 |
|
The Conan Swordbook: 27 Examinations of Heroic Fiction | Mirage Press | Nonfiction | ix |
| May 1979 |
|
The Blade of Conan | Ace Books | Nonfiction | 1 |
| August 1982 |
|
The Blade of Conan: The World's Greatest Living Fantasy Writers Pay Tribute to Robert E. Howard | Ace Books | Nonfiction |