Tyler Harris AG RESOURCE: “My Family’s Dairy Farm” is the ninth in a series by Katie Olthoff, Iowa children’s book author. Olthoff writes the books for the Iowa Agriculture Literacy Foundation to provide nonfiction, ag-based resources to schools. New book by children’s author Katie Olthoff helps students learn about dairy farming. Dec 24, 2020 A new nonfiction book by children’s author Katie Olthoff tells the story of raising cows and producing milk on an Iowa farm. “My Family’s Dairy Farm” is available by request free for students and teachers from the Iowa Agriculture Literacy Foundation. The story follows Lucas, an 8-year-old boy in Iowa who helps on his family’s dairy farm. Lucas takes readers on a tour of the farm and discusses how his family cares for the cows, which produce milk that is made into cheese and other dairy products. He discusses the quality care the cows receive and other aspects of sustainability that the farm practices. The book is written at a third grade reading level and has supplemental text that gives additional background information for more advanced readers.