Three decades ago, two men in their fifties began flattening circles into the fields of Hampshire and Wiltshire. Little did they know that their Friday night antics would seed an international phenomenon that continues to change people's lives to this day.

Now, in the first book of its kind - part history and part how-to guide - the secrets of the crop circle world are revealed, by the people behind the modern era's most astounding art practice.

Whether you think crop circles represent a genuine mystery, a new kind of art, or an elaborate practical joke, The Field Guide is sure to leave a lasting impression. Join us in the fields for a unique exploration of this very English artform.