Bo Vine, How to Be a Cow (Price Stern Sloan, 2002)
Quick, funny board book by “Bo Vine” (actually, Shelly Meredith of Whose Nose is This?/Whose Tail is This? fame) that covers some of the basics of cowdom, though there's more than enough anthropomorphism mixed in that you don't want to use this as baby's first primer on cattle husbandry. The illustrations are too cure for words, and as long as Meredith's brand of broad humor works for you, this is one you won't mind reading to the kiddies the first hundred or so times. ***