Ver lo dicho para Marion Anderson
| ▲Título▼ | ▲C▼ | ▲Año▽ | ▲V▼ | ▲Concepto▼ |
|---|---|---|---|---|
| Black Water, White Death |   | 2018 | — | Escritor |
| Little Cottage in the Wood | | 2013 | — | Escritor |
| Deities of the Mythos (junto a Marion Anderson, Scott David Aniolowski, Bruce Ballon et al.) |  | 2006 | — | Escritor |
| Chapter 7: A Shock in the Lightest Night (junto a Marion Anderson, Janice Engan, Charles Engan y Mike Lay) | | 1999 | — | Escritor |
| Chapter 8: At the Mountains (junto a Marion Anderson, Janice Engan y Charles Engan) | | 1999 | — | Escritor |
| Appendices (to "Beyond the Mountains of Madness") (junto a Marion Anderson, Mike Blum, Janice Engan et al.) |  | 1999 | — | Escritor |
| Deities of the Mythos (junto a Marion Anderson, Scott David Aniolowski, Shannon Appelcline et al.) | | 1998 | — | Escritor |
| Egypt & the Nile Valley |   | 1995 | — | Ilustrador |
| Creatures of the Mythos (junto a Marion Anderson, Bill Barton, Fred Behrendt et al.) | | 1995 | — | Escritor |
| Rigid Air (junto a Marion Anderson) | | 1991 | — | Escritor |
| Little Cottage in the Wood (junto a Marion Anderson) | | 1991 | — | Escritor |
