"Professor Keith Critchlow is a well-known lecturer and author and a founding member of Research Into Lost Knowledge Organization (RILKO), a founding member and Director of Studies of Kairos, and a founding member and President of the Temenos Academy. He is Professor Emeritus and founder of the Visual Islamic and Traditional Arts Programme at the Royal College of Art, now the Prince’s School of Traditional Arts. Trained as a painter, Critchlow discovered geometry intuitively. A period of intensive geometric practice (and work with Buckminster Fuller) led him to the recognition that the universal principles of geometry are revealed and confirmed both by the area of design where art and mathematics meet and in the study of nature and ancient and medieval sacred cosmological stone, temple, cathedral, and mosque architectures. Keith Critchlow has been a senior lecturer at the Architectural Association in London, and has taught Islamic Art at the Royal College of Art. He has also participated as geometer in various sacred architectural projects. His books include Islamic Patterns: An Analytical and Cosmological Approach (1999); Time Stands Still: New Light on Megalithic Science (2007);" and The Hidden Geometry of Flowers: Living Rhythms, Form, and Number (Floris Books, 2011). 
"Dr. Keith Critchlow is the cofounder of the journal Temenos, as well as the author of numerous books on sacred geometry, including Order in Space and Time Stands Still. He is Professor Emeritus at The Prince's School of Traditional Arts in London, and a former professor of Islamic Art at the Royal College of Art. Prof. Critchlow, a leading expert in sacred architecture, also founded Kairos, a society that investigates, studies, and promotes traditional values of art and science.
"Prof. Critchlow's contributions to World Wisdom's books on sacred art include such pieces as his forewords to Titus Burckhardt's extraordinary work Chartres and the Birth of the Cathedral (revised), and the compilation of Burckhardt's writings on Christian art in general, The Foundations of Christian Art: Illustrated (edited by Michael Fitzgerald), which won a Midwest Book Gold Award and a Benjamin Franklin Silver Award. In addition, Keith Critchlow wrote a foreword to the book of Frithjof Schuon's writings on sacred art, Art from the Sacred to the Profane: East and West (edited by Catherine Schuon)."
"For many years, Dr. Critchlow was Director of Research and Traditional Arts at the Prince of Wales Institute of Architecture in England. He was born in the UK in 1933, and educated at the famous Summerhill School and the Royal College of Art. Committed to designing only sacred buildings, Keith's most acclaimed structures are the Sathya Sai Institute of Higher Medicine in India, and the Krishnamurti Centre in the U.K."