Stefan Al, PhD, is an architect and thought leader in architecture and urban design. His design credentials include work on the 2000-feet tall Canton Tower, which was briefly the world's tallest structure. In addition, he served as an advisor to the Hong Kong government, the Chinese government, and the United Nations High-Level Political Forum on Sustainable Development. His latest book, The Strip, was a Wall Street Journal "best book to read." At the University of Pennsylvania, professor Al teaches various design courses including an online course, Designing Cities. In addition, he is a Visiting Professor at Tongji University and a 2018 TED Resident. He is a native of The Netherlands.