Christopher Alexander

Born in Vienna, Austria on October 4, 1936 — died March 17, 2022 (aged 85)

Christopher Wolfgang Alexander was an Austrian-born British-American architect and design theorist. He was an emeritus professor at the University of California, Berkeley. His theories about the nature of human-centered design have affected fields beyond architecture, including urban design, software, and sociology. Alexander designed and personally built over 100 buildings, both as an architect and a general contractor. (Wikipedia)