Books by John Helfers
The Valdemar Companion
2001
ISBN 9780756400378
The Vorkosigan Companion
2008
ISBN 9781618247063
Visions of the Apocalypse
2016
ISBN 9781561467617
Risk Takers
2015
The Valdemar Companion: A Guide to Mercedes Lackey's World of Valdemar
1993
ISBN 9780874344257
Star Colonies
2000
ISBN 9780886778941
Knight Fantastic
2002
ISBN 9780756400521
Familiars
2002
ISBN 9780756400811
Little Red Riding Hood in the Big Bad City
2004
ISBN 9780756402334
In the Shadow of Evil
2005
ISBN 9780756402877
Shadowrun: World of Shadows
2015
ISBN 9781942487227
BattleTech: No Greater Honor
- No cover
Shadowrun: Drawing Destiny: A Sixth World Tarot Anthology
Recycled Pulp