When Sir Cumference drinks a potion which turns him into a dragon, his son Radius searches for the magic number known as pi which will restore him to his former shape.

The geometric concepts of circles and squares are shown in photographs of wheels, signs, pots, and other familiar objects.

Pairs of circular shapes convey opposite relationships in the arc of a day.

A boy's circle starts out small but steadily grows as he builds relationships throughout his community.

"The Knights of the Golden Circle was the largest and most dangerous clandestine organization in American history. It amassed billions in stolen gold and silver, all buried in hidden caches across the United States. Since 1865 treasure hunters have searched, but little of that immense wealth has ever been found. Now, one hundred and sixty years later, two factions of what remains of the Knights of the Golden Circle want that lost treasure-one to spend...