Crop Circles: Signs, Wonders and Mysteries

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 ...