Abstract
Mathematical construction and form/structures of nature in universe have been studied and been discussed by philosophers, mathematicians, scientists and artists throughout the centuries. This cosmic query has led important developments in mathematics and physics as in many other disciplines and through this learning process inter discipliner knowledge has been growing exponentially by those feed backs. Golden ratio is one of the oldest and probably the persistent parameters used by human being to understand/ inspire/ learn and implement the growth model of nature and design aesthetic of natural structures. It is seen that, phi code facilitates to explain not only developments of forms in nature (morphogenesis), but also to explain aesthetic and structural forms of work of art and architecture. This study exemplifies how the golden ratio, Φ (phi) is coded (Φ code) in nature, art and architecture. Furthermore, this paper introduces a discussion platform that phi code could be a tool to optimize the structural behavior as it is seen in some structural systems like shells.