When was the first crop circle? How long have they been appearing? Are they just a practical joke? With the help of the world's major research bodies, Terry Wilson has documented and investigated more than 300 historical cases of crop circles, proving beyond doubt that the phenomenon has been around for decades, centuries and probably millennia - long before the hoax claimants seem to think. Read first-hand witness accounts from days gone by, see the much older photographic evidence and judge for yourself whether you know the true origins of this enduring mystery. This new edition is revised and expanded, with extra images and material, and a brand new foreword by leading crop circle researcher and author, Andy Thomas. It should be an indispensable part of any crop circle enthusiast's library, and offers a significant body of information for researchers to grapple with. If you think the origins of the circles has already been discovered, this book will prove to you that the mystery not only persists, but is much deeper than previously thought.