Viking Ships At Sunrise (Magic Tree House 15, paper)
Random House (Merchandising), August, 1998.

Turtle and Snake at Work (Viking Easy-To-Read)
Puffin, February, 1999.

Vikings : The North Atlantic Saga
Smithsonian Institution Press, 15 April, 2000.

The Book of Runes: A Handbook for the Use of an Ancient Oracle: The Viking Runes/Book and Rune Stones/10th Anniversary Edition
St. Martin's Press, October, 1993.

The Quiet American: Text and Criticism (Viking Critical Library)
Penguin USA (Paper), January, 1996.

The Islamic World, Russia and the Vikings, 750-900: The Numismatic Evidence (Variorum Collected Studies Series, 595)
Ashgate Publishing Company, July, 1998.

Eric Brighteyes
Tantor Media Inc., June, 2001.

Mongols, Huns & Vikings
Sterling Publications, July, 2002.

Portable Jung (Viking Portable Library (Paper))
Viking Press, December, 1976.