Dr. James G. Bockheim was Professor of Soil Science, Forest and Wildlife Ecology, and Environmental Studies at the University of Wisconsin from 1975 until his retirement in 2015. He has conducted research in forestry, soils, and sur?cial geology throughout the upper Great Lakes region. His previous books include Pedodiversity (2013; with J. J. Ibáñez); Soil Geography of the USA: a Diagnostic-Horizon Approach (2014); Cryopedology (2015); The Soils of Antarctica (2015); and The Soils of Wisconsin (2017; with A. E. Hartemink).