David Wade is an artist and architect, as well as the author of Pattern in Islamic Art (Overlook Press and Studio Vista, 1976); Geometric Patterns and Borders (Wildwood House and Van Nostrand Reinhold, 1982); Crystal and Dragon: The Cosmic Dance of Symmetry and Chaos in Nature, Art and Consciousness (Destiny Books, 1993); Li: Dynamic Form in Nature (Walker & Company, 2003); and Symmetry: The Ordering Principle (Walker & Company, 2006).