A. R. Ruis is Associate Director for Research in the Epistemic Analytics lab at the Wisconsin Center for Education Research and a fellow in the Department of Medical History and Bioethics at the University of Wisconsin–Madison. He is the author of Eating to Learn, Learning to Eat: The Origins of School Lunch in the United States, as well as numerous articles on the history of food, nutrition, and health; quantitative ethnography and digital humanities; health services research; and STEM and medical education. Dr. Ruis led the development of iPlan, which simulates the impacts of land use on socio-economic and environmental issues, and he has contributed to the development of other learning simulations and analytic tools. He also edits the book series RE:Past—Studies in the History of Nutrition, which is published by Johns Hopkins University Press, and he is a co-founder and editor of H-Nutrition.