Alison G. Kwok, PhD, FAIA, CPHC, LEED-AP, and ASES Fellow, is a registered architect and a Professor of Architecture at the University of Oregon. She has also taught in architecture programs in California, Hawaii, New York, Hong Kong, Japan, and Korea.

Walter T. Grondzik, PE, CPHC, ASES and ASHRAE Fellow, is an architectural engineer and a Professor Emeritus of Architecture at Ball State University. He has also taught in architecture and architectural engineering programs in Florida, Oklahoma, Oregon, and Saudi Arabia.

Tom Hahn, MArch, RA, CPHC, LFA, is a registered architect and former builder and now a Senior Instructor of Architecture at the University of Oregon. He previously taught at Taliesin, Ecosa, and ASU. He has designed, built with or consulted on many of the systems included in the book.