Book's author Leif K. Karlsen at the helm of the replica Viking ship "Borgundknarren" during a voyage in 1996.

Secrets of the Viking Navigators

How the Vikings used their amazing sunstones
and other techniques to cross the open ocean.

by Leif K. Karlsen

216 pages in 3 primary sections; richly illustrated with black and white drawings and color photos.

Order the book from STARPATH BOOKS