What is the difference between ratio and proportion? When is a harmonic rectangle also geometric? Do pentagons, hexagons, and heptagons really each have their own characters? Is there a secret to great art? In this beautiful little book, art educator Michael Schneider presents a groundbreaking synthesis of proportion in the ancient world. From temples to dinner plates, paintings to pots, archways to jewelry, discover the eternally useful tools and techniques of the masters.