http://images.amazon.com/images/P/0195208668.01._PE_PI_SCMZZZZZZZ_.jpg ''Foreshadowing of 21st Century Art: The Color and geometry of very early Turkish carpets'' by ChristopherAlexander. Oxford University Press, 1993. ISBN 0-19-520866-8 Alexander's book about his carpet collection and his early insights into geometry, color, and beauty. In it one finds the genesis of the 15 structural properties that would later form a foundation for the TheoryOfCenters in NatureOfOrder. See ForeshadowingTwentyFirstCenturyArt for discussion. ---- CategoryBook