Very helpful in giving background to the very diverse and interesting tribe called Fianna. it helps show them as more than just drinking, singing bards, actually going into background with their fae connections, rites and rituals, and their actions today. A great read just alone even if not used for the game. My girlfriend reads it just for the interesting story, even though she does play a Fianna too. Highly enjoyable and worth grabbing befor it starts to vanish.