Benjamin W. Smith is Director of the Rock Art Research Institute, University of the Witwatersrand, Johannesburg. He is President of the Pan African Archaeological Association and Research Editor of the South African Archaeological Bulletin. His research interests include the herder and farmer rock arts of Africa, the Batwa (Pygmy) rock art of central Africa, theory and method in rock art studies and the role of rock art in modern society. Knut Helskog is Professor of Archaeology at Troms University Museum, University of Tromsø, Norway. His responsibilities include the management of the Norwegian Cultural Heritage Act, salvage archaeology, archives, collections, museum exhibitions, popularisation and research. His research interests are oriented towards hunter–fisher-gatherer populations in northern Fennoscandia with a special focus on the interpretation of rock art. David Morris is Head of Archaeology at the McGregor Museum in Kimberley, South Africa. His work involves collections management, museum display, public archaeological site management and contract archaeology. His research focus is the archaeology of South African hunter-gatherers and herders with a particular focus on rock art.