For more than five hundred years, the symbology of Freemasonry has fostered a secret stream of radical ideas running just beneath the surface of popular culture today. These ideas, illuminated by public symbols hidden in full view, have influenced and shaped the society we have today. Despite this ongoing record of inspiration, no illustrated guidebook to the basic ideas of Masonic symbology has ever been published and the story remains mysterious—until now. This authoritative guide reveals how this symbology has been the backdrop for key historical events in the history of humanity from ancient times and how, in more recent times, inspired leaders have harnessed the symbols' power to bring about change in society. Renowned Freemasonry historian Dr. Robert Lomas takes you inside the Secret Order and shows you how these symbols have made their indelible mark on the past, and how they will continue to influence society in the future.