Each summer all over the world, gigantic and magnificent works of art are sculpted in fields of wheat, barley and other crops. Usually formed under the veil of darkness, in the few short hours between sunset and sunrise, they become visible as the mists of early morning evaporate under the rays of the sun. But are they elaborate hoaxes or eternal mysteries? World authorities, Karen and Steve Alexander reveal that hidden within the proportions and shapes of many of these spectacular designs are measures and harmonies that have been used for thousands of years in the creation of sacred and holy spaces. This ancient way of using design, measure and proportion is explored here to the full. Sacred geometry, numerology and other mustical concepts long forgotten in modern design are discussed alongside the crop circles in which they have been found. The result is a groundbreaking book that reaches to the heart of these mysteroius creations.