Geirr Haarr, a Norwegian living in Stavanger, works in environmental project development. Combining his academic training, research skills and a passion for naval history, he has delved into some of the more exciting aspects of the naval history of the Second World War in Europe.

Haarr's first two books, published by the Naval Institute Press, 'The invasion of Norway' and 'The Battle for Norway' were received with great acclaim.