| ▲Título▼ | △C▼ | ▲Año▼ | ▲V▼ | ▲Concepto▼ |
|---|---|---|---|---|
| Waxworks |   | 1939 | — | Escritor |
| Welcome, Stranger | | 1957 | — | Escritor |
| Yours Truly, Jack the Ripper | | 1943 | — | Escritor |
| Strange Eons |   | 1978 | — | Escritor |
| H. P. Lovecraft: A Symposium - October 24 1963 (junto a Arthur Jean Cox, August Derleth, Fritz Leiber et al.) |   | 1963 | 5.00 | Escritor |
| Heritage of Horror | | 1984 | — | Escritor |
| Out of the Ivory Tower | ? | 1959 | — | Escritor |
| Introduction (to "The Disciples of Cthulhu") |  | 1976 | 8.00 | Escritor |
| Preface (to "Tales of the Lovecraft Mythos") | ? | 1992 | — | Escritor |
| Afterword (to "Mysteries of the Worm") |  ? | 1981 | — | Escritor |
| A Eulogy for the Church of "The Haunter of the Dark" | ? | 1992 | — | Escritor |
| An Open Letter to H.P. Lovecraft |  | 1990 | — | Escritor |
