Abstractions Based on Circles: Papers on prehistoric rock art presented to Stan Beckensall on his 90th birthday

Paul Frodsham has worked as a professional archaeologist in northern England for more than 30 years, including 14 years with the Northumberland National Park Authority and ten with the North Pennines AONB Partnership. He now runs his own independent consultancy (Oracle Heritage Services) and is an Honorary Fellow in Archaeology at Durham University. He specialises in the development and delivery of innovative community projects, e.g., Altogether Archaeology and Belief in the North East. He has published numerous books and papers on a variety of subjects, mostly relating to the prehistory of northern England, especially Neolithic monuments and rock art.Kate Sharpe is a Research Fellow at Durham University. Her work has three key strands which often overlap: investigating the use of stone in prehistoric Britain, including megaliths, stone tools and, primarily, rock art; using digital heritage to improve understanding and awareness of the ancient past; and copyediting and writing about archaeology. She has experience managing community rock art projects in Northumberland, Durham and West Yorkshire, although her research focus is the rock art of Cumbria.