Lee E. Gray, Ph.D., is the senior associate dean in the College of Arts + Architecture and a professor of Architectural History in the School of Architecture. He is a well-known expert in the history of vertical transportation and the author of "From Ascending Rooms to Express Elevators: A History of the Passenger Elevator in the 19th Century." Since 2003, he has written monthly articles on the history of vertical transportation for Elevator World magazine. In addition to these articles he has, since 2011, written numerous reviews (for Elevator World) of the annual CTBUH Awards Symposium & Ceremony. His presentations include papers on elevator history given at Elevcon (2012, 2014 and 2018) and the Symposium on Lift and Escalator Technologies (2014, 2015, 2016 and 2017). He has appeared on the History Channel in Modern Marvels–Building a Skyscraper (2004), the National Geographic Channel in Big, Bigger, Biggest–Airport (2008) and on PBS in NOVA: Trapped in an Elevator (2010). Gray completed a Ph.D. in Architectural History from Cornell University, a master's degree in architectural history from the University of Virginia, and a bachelor's degree in architecture from Iowa State University.