In the book The Aztec Calendar: Math and Design, Charles William Johnson examines the possible relationships between mathematics and geometry. The historically significant numbers may reflect progressions which in turn may be translated into geometrical figures and designs. No one knows for certain how the Aztec Calendar may have been read or interpreted. Its simbolic design is striking and has intrigued scholars for centuries. The Aztec Calendar: Math and Design explores the stone's elements and rings in relation to their spatial divisions in an attempt to discern a possible method of computation, using the historically significant numbers of the ancient reckoning system. The book promotes the existence of specific mathematical posits that the geometrical spatial division of the calendar's elements appear to obey.