Bruce King has been a structural engineer for 35 years, designing buildings of every size and type around the world. He is the Founder and Director of the Ecological Building Network (EBNet) www.ecobuildnetwork.org and the BuildWell conferences on green building materials. Bruce's decades of research into alternative building systems has led to building code changes in California and globally. He is the author of Buildings of Earth and Straw, Making Better Concrete, and the landmark Design of Straw Bale Buildings. Bruce lives in San Rafael, California.