Shlain contrasts the feminine right-brained oral teachings of Socrates, Buddha, and Jesus with the masculine creeds that evolved when their spoken words were committed to writing. The first book written in an alphabet was the Old Testament and its most important passage was the Ten Commandments. The first two reject of any goddess influence and ban any form of representative art.

The love of Mary, Chivalry, and courtly love arose during the illiterate Dark Ages and plummeted after the invention of the printing press in the Renaissance. The Protestant attack on holy images and Mary followed, as did ferocious religious wars and neurotic witch-hunts. The benefits of literacy are obvious; this gripping narrative explores its dark side, tallying previously unrecognized costs.

Shlain goes on to describe the colossal shift he calls the Iconic Revolution, that began in the 19th century. The invention of photography and the discovery of electromagnetism combined to bring us film, television, computers, and graphic advertising; all of which are based on images. Shlain foresees that increasing reliance on right brain pattern recognition instead of left brain linear sequence will move culture toward equilibrium between the two hemispheres, between masculine and feminine, between word and image. A provocative, disturbing, yet inspiring read, this book is filled with startling historical anecdotes and compelling ideas. It is a paradigm shattering work that will transform your view of history and mind.