Matthew Stein is the author of the highly praised book When Technology Fails (Chelsea Green 2008) a comprehensive manual on sustainable living skills. As the owner of Stein Design & Construction, he has built hurricane resistant, energy efficient and environmentally friendly homes. The mechanical engineering side of his firm specializes in product design and development. Among other things, Mat has designed consumer water filtration devices, photovoltaic roofing panels, medical bacteriological filters, emergency chemical drench systems, computer disk drives, and portable fiberglass buildings. In recognition of his expertise, Stein has appeared on numerous radio and television programs and is a repeat guest on Fox News, Lionel, Coast-to-Coast AM, and the Thom Hartmann Show. He has also written several articles on the subject of sustainable living and is a guest columnist for the Huffington Post. Stein is a graduate of the Massachusetts Institute of Technology (MIT) where he majored in Mechanical Engineering. He is an active mountain climber and serves as a guide trainer for blind skiers with the Ski for Light cross-country program. Stein currently resides with his wife Josie in the High Sierra Mountains near Lake Tahoe, California.