Bruce R. Cordell

The Psionics Handbook is a sourcebook for the 3rd edition of the Dungeons & Dragons fantasy role-playing game that contains a multitude of rules and options for integrating psychic powers into the D&D game.

Planar Handbook is an optional supplemental source book for the 3.5 edition of the Dungeons & Dragons fantasy roleplaying game.

The Sunless Citadel is an adventure module for the 3rd edition of the Dungeons & Dragons fantasy role-playing game.