an Entity references as follows:
Bibliothèque bleue ("blue library" in French) is a type of ephemera and popular literature published in Early Modern France (between c. 1602 and c. 1830), comparable to the English chapbook and the German Volksbuch. As was the case in England and Germany, that literary format appealed to all levels of French society, transcending social, sex, and age barriers. A significant collection of Bibliothèque bleue volumes is located at the .