Books
Audiobooks
The Abacus and the Cross: The Story of the Pope Who Brought the Light of Science to the Dark Ages (Unabridged)
2010
Too Close to a Volcano?: I traveled to Iceland to have a close encounter with a volcano.
2018
Looking for the Hidden Folk : How Iceland's Elves Can Save the Earth
2023
The Real Valkyrie
2021
The Far Traveler
2023
Ivory Vikings : The Mystery of the Most Famous Chessmen in the World and the Woman Who Made Them
2015