The Speaker in Dreams (2001)
Monsters of Faerun (2001) (with Rob Heinsoo)
Defenders of the Faith: A Guidebook to Clerics and Paladins (2001) (with Rich Redman)
Oriental Adventures (2001)
Deities and Demigods: Dungeons and Dragons (2002) (with Rich Redman, Skip Williams)
Arms and Equipment Guide: Dungeons and Dragons Accessory (2003) (with Eric Cagle, Jesse Decker, Jeff Quick, Rich Redman)
Fiend Folio (2003) (with Eric Cagle, Jesse Decker, James Jacobs, Erik Mona, Matthew Sernett, Chris Thomassen)
Book of Exalted Deeds (2003) (with Darrin Drader, Christopher Perkins)
The Draconomicon (2003) (with Andy Collins, Skip Williams)
Past (2005) (with Gwendolyn F M Kestrel)
Heroes of Horror (2005) (with Ari Marmell, C A Suleiman)
Magic of Incarnum: Dungeons and Dragons (2005) (with Frank Brunner, Stephen Schubert)
Expedition to Castle Ravenloft (2006) (with Bruce R Cordell)
Dire Tombs: Dungeon Tiles (2007)

Forgotten Realms
City of the Spider Queen: Forgotten Realms Campaign Option (2002)
Players Guide to Faerun (2004) (with Richard Baker)

Eberron
Eberron Campaign Setting (2004) (with Keith Baker, Bill Slavicsek)
Sharn City of Towers (2005) (with Keith Baker)
Player's Guide to Eberron (2006) (with Keith Baker, Steven Brown, Luke Johnson)
The Forge of War (2007) (with Wolfgang Baur, Ari Marmell)

Eberron : War-Torn
3. In the Claws of the Tiger (2006)

Eberron : Draconic Prophecies
1. The Storm Dragon (2007)
2. Dragon Forge (2008)
3. Dragon War (2009)