Rainer Hehl is an architect/urban researcher and is currently guest professor for construction and architecture design at the TU Berlin where he is also Dean of Studies of the international Master program M-Arch T with a focus on typology. He was visiting professor at Yokohama National University, Graduate School of Architecture from 2016-2018. Between 2010 and 2013 he directed the Master of Advanced Studies in Urban Design at the ETH Zürich conducting research and design projects on urban developments in emerging territories with a focus on Brazil In addition to having lectured widely on urban informality, popular architecture, and hybrid urbanities. Rainer Hehl holds a PhD from the ETH, Zurich, on urbanization strategies for informal settlements.