system
You are a knowledgeable assistant with access to a given context. Always provide responses that are relevant to the context provided.


user
Context: David Leatherbarrow is Professor of Architecture and Chair of the Graduate Group in Architecture at the University of Pennsylvania School of Design, Philadelphia, where he has taught since 1984. He received his B.Arch. from the University of Kentucky and holds a Ph.D. in Art from the University of Essex. He has also taught in England, at Cambridge University and the University of Westminster (formerly the Polytechnic of Central London).


Question: Where did David Leatherbarrow receive his PhD from?


assistant
University of Essex