<b>An inquiry into hearing voices-one of humanity's most profound phenomena</b> <p/> Auditory hallucination is one of the most awe-inspiring terrifying and ill- understood tricks of which the human psyche is capable. In the age of modern medical science we have relegated this experience to nothing more than a biological glitch. Yet as Daniel B. Smith puts forth in <i>Muses Madmen and Prophets</i> some of the greatest thinkers leaders and prophets in history heard listened to and had dialogues with voices inside their heads. In a fascinating quest for understanding Smith examines the history of this powerful phenomenon and delivers a ringing defense of the validity of unusual human experiences.