| ▲Título▼ | △C▼ | ▲Año▼ | ▲V▼ | ▲Concepto▼ |
|---|---|---|---|---|
| Interlude: Revolution |   | 2017 | — | Escritor |
| Introduction (to "Fearful Passages") (junto a Lynn Willis) | | 1991 | — | Escritor |
| Preface to the 40th Anniversary Edition (junto a Paul Fricker, Lynne Hardy, Penelope Love et al.) |   ? | 2021 | — | Escritor |
| Introduction (to "Horror on the Orient Express") |  | 2013 | — | Escritor |
| Introduction (to "Terror Australis") (junto a Penelope Love) | | 1987 | — | Escritor |
