Who is Heinrich Tessenow from the nonfiction book, Inside the Third Reich: Memoirs?

Heinrich Tessenow is the Professor of architecture at the Institute of Technology in Berlin-Charlottenburg when Albert Speer transfers from Munich. Tessenow is a champion of simple craftsmanship, clear-headed, outwardly unimaginative and sober but profound. His intelligence is "frighteningly acute." Young Speer realizes his goal of becoming Tessenow's assistant. The Institute of Technology becomes a center of Nazism because Tessenow's nationalism coincides with its ideas, despite his anti-Nazi views. Tessenow decries the metropolis and extols peasant virtues. Shown one of Speer's Nazi backdrops, Tessenow finds it "showy."