Christopher Alexander&#x27;s <i>A City is Not a Tree</i> is another great essay on systems thinking.<p><a href="http:&#x2F;&#x2F;www.bp.ntu.edu.tw&#x2F;wp-content&#x2F;uploads&#x2F;2011&#x2F;12&#x2F;06-Alexander-A-city-is-not-a-tree.pdf" rel="nofollow">http:&#x2F;&#x2F;www.bp.ntu.edu.tw&#x2F;wp-content&#x2F;uploads&#x2F;2011&#x2F;12&#x2F;06-Alexa...</a>