Races of Eberron is an accessory for the Eberron setting that provides information on the races originally presented in the Eberron Campaign Setting: the warforged, shifters, changelings, and kalashtar. The includes the psychology, society, culture, behavior, religion, folklore, and other aspects of the races. Races of Eberron also provides new substitution levels, prestige classes, feats, spells, magic items, equipment, and other options for creating characters for any campaign world.
Trampas Whiteman of Dragonlance Nexus felt that this is the best of the races books and introduces players to new races that are interesting. The book also had a few problems with editing and is missing an index. He suggested that for anyone playing in an Eberron campaign, the book provides a lot of character options. This book is more useful than any of the other books in the series.