Reviews

...a useful source for those beginning study of Viking period navigation.[...] Thirslunds interdisciplinary approach to research yields positive results for evidence of Viking period navigation.'--Peter Campbell, East Carolina University "Nautical Research Journal, Autumn 2008 "

...to be recommended to all who would understand early Scandinavian navigation. The subject is lucidly explained and contains as much as is at present known about ancient sun-compasses.'--Owain T.P. Roberts, Amlwch, North Wales, UK "Nautical Archaeology, 2009 "

"For anyone who is interested in the problems of early navigation, or who would like to follow the logic of the sun compass's reconstruction and use, this will be a treasured volume."--Edward Von der Porten "Ships in Scale, July/August 2013 "