Creaciones
| ▲Título▼ | ▲C▼ | ▲Año▼ | ▲V▼ | △Concepto▼ |
|---|
| Customizing Mythos (junto a Charlie Krank, Eric Rowe y Lynn Willis) |   | 1996 | — | Escritor |
| Deities of the Mythos ("Malleus Monstrorum") (junto a Marion Anderson, Phil Anderson, Bruce Ballon et al.) |   | 2006 | — | Escritor |
| Deities of the Mythos ("The Creature Companion") (junto a Marion Anderson, Phil Anderson, Shannon Appelcline et al.) | | 1998 | — | Escritor |
| Designer Notes (junto a Charlie Krank, Eric Rowe y Lynn Willis) | | 1996 | — | Escritor |
| The Dreamlands Bestiary (junto a K.L. Campbell-Robson, Larry DiTillio, Phil Frances et al.) | | 1997 | — | Escritor |
| An Early Frost |   | 1994 | — | Escritor |
| Errata (junto a Charlie Krank, Eric Rowe y Lynn Willis) | | 1996 | — | Escritor |
| Értóng hé Küqì de Mûqïn (The Child and the Weeping Mother) (junto a Tom Lynch) |  | 2013 | — | Escritor |
| Examples (junto a Charlie Krank, Eric Rowe y Lynn Willis) | | 1996 | — | Escritor |
| The Eyes of a Stranger | | 1993 | — | Escritor |
| Fade to Gray (junto a Petra Pino y Blair Reynolds) | | 1991 | 7.50 | Escritor |
| Foreword ("Malleus Monstrorum") | | 2004 | — | Escritor |
| Frequently Asked Questions (junto a Charlie Krank, Eric Rowe y Lynn Willis) | | 1996 | — | Escritor |
| The Horseman | | 1992 | — | Escritor |
| Introduction (to "Malleus Monstrorum") | | 2006 | — | Escritor |
| Introduction (to "Ramsey Campbell's Goatswood and less pleasant places") |  | 2001 | — | Escritor |
| Introduction (to "Tales of the Sleepless City") | | 2013 | — | Escritor |
| Introduction (to "The Compact Trail of Tsathoggua") |  | 1997 | — | Escritor |
| Introduction (to "The Creature Companion") | | 1998 | — | Escritor |
| Introduction (to "Ye Booke of Monstres II") | | 1995 | — | Escritor |
| Introduction (to "Ye Booke of Monstres") | | 1994 | — | Escritor |
| Jack the Ripper (junto a Kevin Ross) | | 2012 | — | Escritor |
| Massa di Requiem per Shuggay | | 2014 | — | Escritor |
| Massa di Requiem per Shuggay: A History of The Devil’s Opera | | 2013 | — | Escritor |
| La Musique de la Nuit | | 1996 | — | Escritor |
