John Martineau is a cosmologist and the publisher of Wooden Books. Roger Burrows has written books on geometry, design, and architectural form, for adults and children. Dr. Ensor Holiday co-created Altair Designs with Roger Burrows. Sir Roger Penrose is an English mathematical physicist, mathematician and philosopher of science, based at the University of Oxford. Haifa Khawaja is a Jordanian architect and artist whose designs are based on Islamic patterns.