Experts v.3.5 is dedicated to bringing new depth and playability to the Expert, the NPC class only briefly described in the DMG.

Tests of Skill is an adventure module and sourcebook designed to entertain and challenge players through scenarios and encounters that can be overcome optimally through role-playing, skill use, and diplomacy.

"Warriors" is a comprehensive OGL sourcebook for fantasy role-playing games that expands upon the description of the Warrior class in the "Dungeon Master’s Guide."