Was helping setting up the game for some other pcs. And during it i felt there could maybe be a bit more information on the different Kin, as i got asked questions about it. Specifically, give them a brief description on what their appearance is like (Some stuff in the adventure segment, for instance, hinted female dwarves could have beards. Is this common? And how do elves' eyes look like? Are the males black and the females white? What kind of plumage does a mallard typically have? and etc), how long they typically live (do elves live for hundreds of years? Thousands? Can be useful to know in case one of them "was there" during a historical event. Do any kin live shorter than a typical human lifespan?),
It shouldn't go too much into detail of culture, as i feel that is at least covered, and it should be kept on the short side to keep it's streamlined approach. But a bit of information can give players ideas what their character is going to be like.