In this brief, accessible volume, the authors – an urban philosopher and a mathematician-physicist – explain the surprising new findings from the sciences that are beginning to transform environmental design in the modern era. Michael Mehaffy and Nikos Salingaros explore fractals, networks, self-organization, dynamical systems and other revolutionary ideas, describing them to non-science readers in a direct and engaging way. The book also examines fascinating new topics of design, including Agile, Wiki, Design Patterns and other "open-source" approaches from the software world. The authors conclude that a profound transformation is under way in modern design -- and today's students and practitioners will need to be aware of its implications for our future.