By featuring a single cow (Clarabelle) and her calf on a large, modern-day Wisconsin dairy farm, Peterson describes all the latest technology that enables farmers to create energy and other by-products from their herds. And yet none of the modern-day machinery matches the miracle of production that is the cow herself. Vibrant, close-up photographs capture Clarabelle with her herdmates and her newborn calf as well as the family members of Norswiss Farm who live and work together.