Gary Lock is Emeritus Professor of Archaeology at the University of Oxford where he has researched and taught later prehistoric archaeology for over 30 years. He has a special interest in landscapes, including the applications of Geographic Information Systems, and the theoretical and practical study of hillforts. Gary has led excavations at hillforts on the Oxfordshire Ridgeway, in North Wales and Shropshire. He is a long standing member of the Hillfort Study Group.

Ian Ralston is Abercromby Emeritus Professor of Archaeology at the University of Edinburgh, is presently President of the Society of Antiquaries of Scotland. He has excavated hillforts in France at Mont Beuvray in Burgundy and Levroux and Bourges in Berry. The writer of some 150 published papers, he is the author or editor of more than 20 books. Ian has also extensively researched Scottish archaeological topics including both pre- and post-Roman hillforts.