Jon Allen has been a practising architect for twenty-five years. He has worked closely with Keith Critchlow, a world authority on geometry, and has developed a particular interest in the application of geometry in architectural design. He lives in London. He is also the author of Making Geometry (Floris Books, 2012). Professor Keith Critchlow is a well-known lecturer and author. He is a founder member of RILKO (Research Into Lost Knowledge Organisation), a founder member and Director of Studies of Kairos and a founder member and President of the Temenos Academy. He has been a senior lecturer at the Architectural Association in London and has taught Islamic Art at the Royal College of Art; he now lectures worldwide on architecture and sacred geometry. His many previous books include Order in Space, Islamic Patterns: An Analytical and Cosmological Approach, Markings: Aerial Views of Sacred Landscapes, and Soul as Sphere and Androgyne.
'The author has produced a reference work for those wishing to construct regular polyhedra and an interesting collection of photographs of plants.' -- Science Group of the Anthroposophical Society in Great Britain Newsletter 'Simply an excellent guide book... it subtly leads into a meditative state followed by the catharsis of achieving perfection. Beyond that it encourages the intelligent eye to go exploring for these shapes in nature...a splendid inspiration.' -- Francis Cameron, Pentacle Magazine 'A simple and beautiful book...The beauty of the proportions is palpable, especially when illustrated alongside the flowers whose designs reflect the same principles. The instructions and illustrations are equally clear.' -- Scientific and Medical Network Review, Winter 2007