Detailed in this 192-page core supplement are the most prominent religions and deities of the Realms. Each divine power is covered in depth by an entry that includes information about the deity's appearance, personality, worshipers, portfolio, aliases, domain name, superior, allies, foes, symbol, worshipers' alignments, avatar, manifestations, church, and specialty priests. The information on each religion includes its core dogma, day-to-day activities of priests, holy days and important ceremonies, major centers of worship, affiliated orders, and the priestly vestments and adventuring garb of members of the clergy. Finally, each entry contains spells specific to each of the religions—some new, some long unavailable or hard to find, and some updated to conform with the current AD&D® game rules.