A Companion to Beowulf:
Most students have to read Beowulf in high school or college, and yet ther'es only one book dedicated to introducing this ancient poem to modern readers.

All Things Medieval:
What were shoes made from in medieval Europe? What did they use as dishes? Thousands of questions like these are answered in the two-volume encyclopedia.
Excavating English:
The history of the English language has never packed so many centuries and so much fun into so few pages. Learn words with puzzles and games and try speaking Anglo-Saxon! Co-written with Ellen J. McHenry.