What are crop circles and what do they mean? - Who - or what - is responsible for the thousands of complex patterns found in cereal crops all over the world? - Are they all made by hoaxers? - Are they made by aliens or Government satellites? - Are they a scream from a dying planet? - Are they a manifestation of human consciousness? - Is there an esoteric code hidden in their patterns that comprise a message for mankind? - Are we in danger and crop circles are some kind of warning signal? - Are they all created by natural earthly causes - magnetic fields, underground water, plasma vortices...rutting hedgehogs? This book brings the world up-to-date on the research into this fascinating subject. It takes you on a mysterious and informative ride into the world of the crop circle phenomenon, providing an overview and setting the record straight about the nature of crop circles, their origins and their meaning. The author also explores the many theories of crop circle formation, describes the author's first experience with crop circles and how this led him into his life's work and delves into his decades of work studying the phenomenon.