Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Races of Stone (sometimes abbreviated to RoS) is an optional sourcebook for the Dungeons & Dragons fantasy role-playing game. It focuses on gnomes, dwarves, and a new race, called goliaths, providing cultural information for these races as well as subraces. A web enhancement for the book was published in 2004 by Wizards of the Coast. The racial substitution levels in the book have been praised because "[the] mechanic lets you play more than just another dwarven fighter or gnome bard." The book has also been criticized for its focus on three different races, because "By splitting its attention three ways, odds are only a third of this book is for any given player. Sure, some players fall in love with a specific race, but it''s doubtful that anyone falls in love with the idea of all races that live in the mountains."