Join Lee and Rick Nelson, co-authors of “The Great Minnesota Cookie Book” and the forthcoming “The Ultimate Minnesota Cookie Book” on Saturday as we celebrate the harvest AND cookies at the Farm at the Arb event all morning. Lee and Rick speak at 11 a.m. in the kitchen with chef Beth Fisher at the Farm, and there will be cookies to sample from “The Ultimate Minnesota Cookie Book.” Plus many harvesting events at the Farm: sugar beets, corn and potatoes. Flower arranging and storytelling and much more also take place.