Christopher Alexander

Christopher Wolfgang Alexander (4 October 1936 – 17 March 2022) was an Austrian-born British-American architect, writer and design theorist. He was an emeritus professor at the University of California, Berkeley. He talked about how architecture effects urban design, software, sociology and others. Alexander designed and personally built over 100 buildings, both as an architect and a general contractor.
His written works include "Notes on the Synthesis of Form, A City is Not a Tree", "The Timeless Way of Building, A New Theory of Urban Design," "The Oregon Experiment." and a four volume essay "The Nature of Order".
Alexander died on 17 March 2022 at his home in Walberton, West Sussex, England after a long illness at the age of 85.