Shaman's OracleBefore spoken language evolved, our ancestors communicated through images, drawn or carved onto the walls of caves. A vast proportion of the thousands of such images derive from the visionary insights of the first shamans, who either left them as reminders for themselves or as spiritual signposts for those who came after them. Created by practising shaman John Matthews and beautifully illustrated with evocative images of cave paintings by Wil Kinghan,