William H. Whyte

William Hollingsworth "Holly" Whyte (born October 1, 1917 – died January 12, 1999) was an American urbanist, organizational analyst, journalist and people-watcher. After his book about corporate culture The Organization Man (1956) which sold over two million copies, Whyte turned his attention to the study of human behaviour in urban settings. https://en.wikipedia.org/wiki/William_H._Whyte