This is an excellent look at the Signs,Wonders and Mysteries of Crop Circles. It does not go to any depth in trying to determine how they were made or by whom.To the authors ,the mysteries associated with how they came to be is very much part of their fascination. Whether or not it is ever conclusively proven who made them is beside the point.
The book has over 200 excellent color photographs of Crop Circles as well as many other diagrams and illustrations.
The authors delve into the meanings represented by the circles as they relate to Mathematics and particularly Geometry. To them ,they see great mystical meanings and a fascinating art form.
The Crop Circles include;
Sacred geometry and Number
Sacred Space
Labyrinths,Mazes and Puzzles
Knots,Ropes and Ribbons
Life Forms
Mysticism,Mythology and Mandalas
The Fractals
and,
Signs and Wonders
While there are people like Doug Bower and David Chorley who admit to making over 255 Crop Circles;there are many that nobody has been able to determine who ,or how they were made.Many have other unexplainable physical characteristics as well.
Back on November 28,2003 ;I wrote a review on "Sacred Geometry" by Miranda Lundy and much of the geometry we see in these Crop Circles is explained there as well.
The book gives detailed references for anyone who wants to pursue Crop Circles further, and much as with UFO's, the mystery continues ,and there is also an ample supply of Web sites where you can turn to to see all that is going on about this fascinating phenomna.
You may want to check the reviews for "Round in Circles" by Jim Schnabel, who claims in his book to have resolved the mysteries of who is making these Crop Circles.