The Nature of Order: An Essay on the Art of Building and the Nature of the Universe (ISBN 0-9726529-0-6) is a four-volume work by the architect Christopher Alexander published in 2002–2004. In his earlier work, Alexander attempted to formulate the principles that lead to a good built environment as patterns, or recurring design solutions. However, he came to believe that patterns themselves are not enough to generate life in buildings and cities, and that one needs a "morphogenetic" understanding of the formation of the built environment as well as a deep understanding of how the makers get in touch with the creative process. Source: Wikipedia (en)