Terry Marsh is a seasoned writer and photographer of travel and walking guidebooks, and has been visiting the Scottish islands since 1968. He is the author of three walking guidebooks to the Isle of Skye, plus others to the Isle of Mull, Orkney and Shetland, the Lake District and the Isle of Man, the last of which was, just like Scotland's islands, technically once part of the greater Viking domain. He is a Fellow of the Royal Geographical Society and a Fellow of the Society of Antiquaries of Scotland.