Professor Brett Kaufman is currently at the University of Illinois at Urbana-Champaign, and Professor Clyde Briant is at Brown University. Brett Kaufman is an Assistant Professor in the Department of the Classics at the University of Illinois at Urbana-Champaign, joining the faculty in 2018. He graduated with a PhD in Archaeology from the University of California, Los Angeles, before holding a Postdoctoral Fellowship at Brown University, and an Assistant Professorship at the University of Science and Technology Beijing. His research focuses primarily on ancient, historic, and prehistoric science and engineering with a particular specialty in metallurgy (archaeometallurgy), the archaeology and history of the Mediterranean and Near East, and reconstructing the management strategies of past societies facing environmental change and resource shortages. His research has been supported by the National Science Foundation and National Geographic Society.Professor Clyde Briant is a Professor in the School of Engineering at Brown University.  From 1976 to 1994 he was a staff metallurgist at the General Electric Company Corporate Research and Development Center in Schenectady, New York.  He joined Brown in 1994.  He was Dean of Engineering at Brown from 2003-2006 and Vice President for Research from 2006-2013.  His primary research activities have been in the field of mechanical properties and microstructures of metallic materials, and he is currently studying the history of technology, particularly the development of the steam turbine industry.  He is a Fellow of both ASM International and TMS  and is a member of the National Academy of Engineering.

• Chapter 1.- Anthropology of Metallurgical Design: A Survey of Metallurgical Traditions from Hominin Evolution to the Industrial Revolution.- Chapter 2.The Beginnings of the Use of Iron and Steel in Heavy Armor.- Chapter 3.Transformative Innovation in Mining and Metallurgy.- Chapter 4.Structural Metallurgy: Metallurgy of Bridges.- Chapter 5.Materials in the Aircraft Industry.- Chapter 6.The Development of Clean Steels for Steam Turbine Applications-Their Demand and Use.