Les Trager is a retired lawyer with an interest in 13th to 17th European Maps which cannot be explained by European scientific knowledge for that time period or by known European explorations. He is a member of the New York Map Society, Washington Map Society and the Explorers Club.
His previous book was Henry Hudson – Cree History and Ancient Maps. Articles include: Mysterious Mapmakers, Exploring the Impossibly Accurate 16th Century Maps of Antarctica and Greenland, and Isostatic Rebound in Lower James Bay and Locating Thomas James and Henry Hudson’s Camps. He is the author of Ancient Explorers and Their Amazing Maps