Keith Critchlow
Keith Barry Critchlow (16 March 1933 – 8 April 2020) was a British artist, lecturer, author, sacred geometer, professor of architecture, and a co-founder of the Temenos Academy in the UK. == Biography == Critchlow was educated at the Summerhill School, St Martins School of Art, and the Royal College of Art. He performed national service in the Royal Air Force (RAF) from 1951 to 1953.