This document provides an introduction to the astrological concepts explored in the book Secrets of the Zodiac. It discusses how astrology began thousands of years ago and has developed different systems around the world. While astronomy studies the science, astrology perceives all things as interconnected and that by understanding how the universe operates we can learn about ourselves, as the macrocosm reflects the microcosm. Modern astrology incorporates psychological concepts from Jung. The birth chart captures the potential of a moment, but we and the charts are not static - astrologers study planetary cycles correlating to life stages and individual development.