In Search of the Unknown (Brown Cover)
Mike Carr
In Search of Dragons
Rick Swan
In Search of Adventure
Various
The Immortal Storm
Frank Mentzer
The Illithiad (1997)
Bruce R. Cordell
Icewind Dale Rime of the Frostmaiden
Wizards RPG Team
I,Tyrant (1996)
Unknown
Humperdink's Biomancy Botique
Jesse Jackdaw Burns & Max Wartelle
Howls in the Night
How to Defend Your Lair
Keith Ammann
How the Mighty Are Fallen
Dale 'Slade' Henson
Hour of the Knife
Horror on the Hill
Douglas Niles
Hordes of Dragonspear
William W. Connors
Horde Campaign
The Horde Boxed Set
Hollow World (Boxed Set) Dungeon Master's Sourcebook
Aaron Allston
Hoard of the Dragon Queen
The Hidden Shrine of Tomoachan
Harold Johnson & Jeff Leason
The Hidden Shrine of Tamoachan (brown cover)
Heroes' Lorebook
Dale Donovan & Paul Culotta
Heroes of Horror
James Wyatt & Ari Marmell
Heroes of Battle
David Noonan & Will McDermott
A Hero's Tale
Monte Cook
Hero Builder's Guidebook
David Noonan
Hellgate Keep
Steven E. Schend
Heliana's Guide to Monster Hunting
Mohammed Bellafquih & Jesse Jackdaw Burns & Max Wartelle
Heart of Nightfang Spire
Havens of the Great Bay
Ed Stark
Haunted Tower Adventure Pack
Haunted Halls of Eveningstar
Ed Greenwood
Hare Raising
Hammerfast: A Dwarven Outpost Adventure Site
Mike Mearls
Halls of the High King
Hall of the Fire Giant King
Gary Gygax
Hall of Heroes
Guildmasters' Guide to Ravnica
A Guide To Transylvania
Nicky Rea
Guide to Hell (1999)
Chris Pramas
Grim Hollow: The Player's Guide
Jordon Gibson & Shawn Merwin & Cory Fuller & Mark Aragona
Grim Hollow: The Monster Grimoire
Shawn Merwin
Grim Hollow: The Campaign Guide
Jordon Gibson & Rex Gibson & Mark Aragona & Cory Fuller
Grim Hollow: Lairs of Etharis
Shawn Merwin & Tom Donovan & Greg Marks
The Griffon's Saddlebag: Book One
Griffin Macaulay
Greyhawk Wars
Greyhawk The Scarlet Brotherhood
Sean Reynolds
Greyhawk Player's Guide
Anne Brown
Greyhawk Appendix (1990)
Greyhawk Adventures
James M. Ward
Greyhawk
Gary Gygax & Robert J. Kuntz
The Great Khan Game
Tom Wham & Richard Hamblen
The Great Glacier
The Grand Duchy of Karameikos
The Gothic Earth Gazetter
Golden Voyages
David Cook
The Golden Khan of Ethengar
Jim Bambra
Gold and Glory
Tim Beach
Gods, Demigods, & Heroes
Robert J. Kuntz & James M. Ward
Goblin's Lair Adventure Pack
Graeme Davis
The Glory of Rome Campaign (1993)