
He worked at TSR, and Wizards of the Coast. Now, he is working as game designer at Paizo, the publisher of the Pathfinder RPG.

Pathfinder Roleplaying Game: Core Rulebook
2009
ISBN 9781601251831
Bestiary 2
2010
ISBN 9781601252685
Pathfinder Roleplaying Game
2016
ISBN 9781601258496
Pathfinder Adventure Path #23: The Impossible Eye
2009
ISBN 9781601251794
Forgotten Realms Campaign Setting
1993
ISBN 9780786918362
Pathfinder Adventure Path #68: The Shackled Hut
2013
ISBN 9781601254931
Pathfinder Adventure Path #47: Ashes at Dawn
2011
ISBN 9781601253125
NPC Codex
2012
ISBN 9781601254672
Pathfinder Adventure Path #59: The Price of Infamy
2012
ISBN 9781601254214
The Emerald Spire Superdungeon
2014
ISBN 9781601256553
Pathfinder Roleplaying Game: Strategy Guide
2015
ISBN 9781601256263
Pathfinder Adventure Path
2007
ISBN 9781601250407
Pathfinder Adventure Path #44: Trial of the Beast
2011
ISBN 9781601253095
Monster Codex
2014
ISBN 9781601256867
Pathfinder Roleplaying Game: Mythic Adventures
2013
ISBN 9781601255495
Pathfinder Roleplay Game
2010
ISBN 9781601252173
Bestiary 4
2013
ISBN 9781601255754
Pathfinder Roleplaying Game: Ultimate Equipment
2012
ISBN 9781601254498
Pathfinder Adventure Path #69: Maiden, Mother, Crone
2013
ISBN 9781601254948
Pathfinder Roleplaying Game: Ultimate Campaign
2013
ISBN 9781601254986
Pathfinder Adventure Path #2: The Skinsaw Murders
2007
ISBN 9781601250377
Pathfinder Adventure Path #25: The Bastards of Erebus
2009
ISBN 9781601251909
Pathfinder Adventure Path #71: Rasputin Must Die!
2013
ISBN 9781601254962
Building Tomorrow
2018
ISBN 9781939979841