books.google.com - While there has always been a large public interest in ancient pictures painted or carved on stone, the archaeological study of rock art is in its infancy. But intensive amounts of research has revolutionized this field in the past decade. New methods of dating and analysis help to pinpoint the makers...http://books.google.com/books/about/Handbook_of_rock_art_research.html?id=WwWETYxlNRkC&utm_source=gb-gplus-shareHandbook of rock art research
