Teaches professional how to make three-dimensional models of all the Platonic and Archimedian solids in step-by-step instructions.
Jon Allen is a practising architect who worked closely with Keith Critchlow, a world authority on geometry, for twenty years. He has a particular interest in the application of geometry to architectural design. He lives in London, and teaches geometry workshops in the UK and US. His book Drawing Geometry was published by Floris Books in 2007.