Guildmasters' Guide to Ravnica
Wizards RPG Team
Hall of Heroes
Unknown
Hall of the Fire Giant King
Gary Gygax
Halls of the High King
Ed Greenwood
Hammerfast: A Dwarven Outpost Adventure Site
Mike Mearls
Hare Raising
Mohammed Bellafquih & Jesse Jackdaw Burns & Max Wartelle
Haunted Halls of Eveningstar
Haunted Tower Adventure Pack
William W. Connors
Havens of the Great Bay
Ed Stark
Heart of Nightfang Spire
Bruce R. Cordell
Heliana's Guide to Monster Hunting
Hellgate Keep
Steven E. Schend
Hero Builder's Guidebook
David Noonan
A Hero's Tale
Monte Cook
Heroes of Battle
David Noonan & Will McDermott
Heroes of Horror
James Wyatt & Ari Marmell
Heroes' Lorebook
Dale Donovan & Paul Culotta
The Hidden Shrine of Tamoachan (brown cover)
Harold Johnson & Jeff Leason
The Hidden Shrine of Tomoachan
Hoard of the Dragon Queen
Hollow World (Boxed Set) Dungeon Master's Sourcebook
Aaron Allston
The Horde Boxed Set
Horde Campaign
Hordes of Dragonspear
Horror on the Hill
Douglas Niles
Hour of the Knife
How the Mighty Are Fallen
Dale 'Slade' Henson
How to Defend Your Lair
Keith Ammann
Howls in the Night
Humperdink's Biomancy Botique
Jesse Jackdaw Burns & Max Wartelle
I,Tyrant (1996)
Icewind Dale Rime of the Frostmaiden
The Illithiad (1997)
The Immortal Storm
Frank Mentzer
In Search of Adventure
Various
In Search of Dragons
Rick Swan
In Search of the Unknown (Brown Cover)
Mike Carr
In the Dungeons of the Slave Lords
Lawrence Schick
In the Phantom's Wake
Infernal Machine Rebuild
Inside Ravens Bluff The Living City
Into the Dragon's Lair
Sean Reynolds & Steve Miller
Into the Maelstrom
Bruce Heard & Beatrice Heard
Inventor
KibblesTasty
The Investigation of Hydell
Islands of Terror
Isle of Dread (Blue Cover)
David Cook & Tom Moldvay
Isle of Dread (Orange Cover)
Isle of the Ape
The Ivory Triangle
Jakandor Island of War
Kirk Botula
Jakandor Isle of Destiny
Kirk Botula & Dale Donovan & Kim Mohan & Harold Johnson
Jakandor Land of Legend
Dale Donovan
Journey
Journey to the Rock
Michael Malone
Journeys through the Radiant Citadel
The Jungles of Chult
James Lowder & Jean Rabe
Kara Tur Appendix (1990)
Kara Tur The Eastern Realms Boxed Set
Kara-Tur Trailmap