In medieval Europe ... “I was like, ‘That’s not possible. There must be a mistake,’” says study lead author Élodie Lévêque, a historian and book conservator at Panthéon-Sorbonne ...

12th century French monks used animal skins to bind and cover their books. One group of books covers didn't look at all like the others ... highlights the extent of medieval trade.

So last week, a group of researchers who were studying a set of medieval books ... clue what a seal might look like, judging from a picture they drew in one of their books. COLLINS: It basically ...