This document provides an overview of Greek architecture codes and principles. It discusses how the Greeks defined the world through mathematics, philosophy, and architecture using basic truths, patterns, and geometry. Key Greek mathematicians like Euclid and architects established principles of proportion and harmony that still influence design today, such as the golden ratio. The document also examines specific architectural orders developed by the Greeks, including the Doric and Ionic orders, describing their distinguishing characteristics and influence on Western architecture.