Bae ‧ dek ‧ er /ˈbeɪdɪkəʳ/ BrE AmE trademark
a type of book providing information for tourists visiting a particular country, originally produced in the 19th century by Karl Baedeker. These books give information about the country's history and about the famous buildings and other places to visit there:
Can I borrow your Baedeker for France?
Look it up in Baedeker.