Petra Kempf, Ph.D is an architect and urban designer based in New York City. She is teaching architecture and urban design at Columbia University and Rhode Island School of Design. She serves on the advisory board of the Journal of New Frontiers in Spatial Concepts and is the founder of urbantransits. Prior to her academic career, she worked for the Department of City Planning in New York City, the Project for Public Space, and Richard Meier and Partners. She has lectured throughout the US, Latin America, Europe and the Middle East, and her work has been exhibited in museums, galleries and institutions in the US and Europe. She is the author of You are the City – Observation, Organization and Transformation of Urban Settings.