Book - The Science of Mandalas

How to draw a heptagon? What about a heptadecagon? How do you draw a circle that fits perfectly inside a triangle? And around? If your computer was broken, could you do it with a ruler and compass?In this unique little book, Andrew Sutton introduces you to the age-old principles of compass and ruler construction, applied for centuries by architects, carpenters, joiners, stonemasons and master craftsmen.