Noting the similarity of prehistoric rock art with that created by some contemporary traditional societies, archaeologists Jean Clottes and David Lewis-Williams suggest that the ancient images were created by shamans, powerful individuals who were able to contact the spirit world through trance and ritual. In many societies throughout history, shamans have been consulted to try to change the weather, foretell the future, control the movements of animals, and converse with the dead.

With an abundance of full-color illustrations, Clottes and Lewis-Williams draw on neuropsychology and ethnography to follow prehistoric shamans into their trance states. The authors shed light on what these rock artists were thinking and how they may have worked. On these pages, Paleolithic art and life are seen in a new and astonishing way.