Bob Quinn was born into a family of farmers who grew wheat and raised cattle in Montana. After he left home to get a PhD, he returned to take over the farm and started doing things differently. He transitioned the farm to organic production and began milling his own grain whole in the 1980s. He also began growing an ancient variety of wheat that is now sold around the world as KAMUT. His book, "Grain by Grain: A Quest to Revive Ancient Wheat, Rural Jobs, and Healthy Food," comes out in March. Host Lisa Held sits down with Quinn to talk about the book, what he’s learned over decades of growing organic grain, why he chose to bring back ancient khorasan wheat, and more.