"Sàpiens" is a Catalan magazine about historical dissemination.
This illustration was made for the "Lost Jobs" section, in which each month the magazine talks about a job that no longer exists. The title of the article was "Rat Catchers: the rat-baiting show" written by Anna-Priscila Magriñà.
The illustration accompanies an article which talks about the role of the rat-catcher in Europe during the 19th century.
The drawing shows a rat-catcher in action. His Terrier is registering the sewers on a cold night. The rats are running in the opposite direction to avoid being caught. The rat-catcher's outfit is illustrated from references of real engravings of that time.