John Adair (author) John Adair (author) Professor John Eric Adair (born 18 May 1934) is a British academic who is a leadership theorist and author of more than forty books (translated into eighteen languages) on business, military and other leadership. Adair was born in Luton and educated at St Paul's School before undertaking his National Service as a second lieutenant in the Scots Guards from 1953 to 1955. Unusually, he served as adjutant of a Bedouin regiment in the Arab Legion and was briefly in command of the garrison of Jerusalem in the front line. He also studied at Hull Nautical College (where
Kurt Lewin Berlin, where he was still a medical student. By the Easter semester of 1911, his interests had shifted toward philosophy. By the summer of 1911, the majority of his courses were in psychology. While at the University of Berlin, Lewin took 14 courses with Carl Stumpf. He served in the German army when World War I began. Due to a war wound, he returned to the University of Berlin to complete his PhD, with Carl Stumpf (1848–1936) the supervisor of his doctoral thesis. Lewin had written a dissertation proposal asking Stumpf to be his supervisor, which Stumpf had accepted. Even