Baedeker is a noun that refers to a travel guidebook.
Our word of the day was named after a German publisher who is remembered for a series of guidebooks. Today we use his name to refer to such books — especially those used for travel.
Following the Baedeker while in New York is not always such a good idea. When I found myself looking for the Statue of Liberty across the street from Central Park, I got the feeling the guidebook was wrong.
