Ian founded Taitem Engineering, Ithaca, NY, in 1989. He is the co-author of the books Green Building Illustrated (2014) and Energy Audits and Improvements for Commercial Buildings (2016), both published by Wiley. Green Building Illustrated has been translated into several languages, and the second edition is due out in the fall of 2020. He has been a visiting lecturer at Cornell University, Tompkins Cortland Community College, and Syracuse University. He holds an undergraduate degree from McGill University, and an M.S. from Columbia University, both in mechanical engineering. Ian is a licensed engineer in the states of New York, Connecticut, and Pennsylvania. In his spare time, Ian enjoys to spend time with family and friends, write poetry, and play soccer and basketball.