Extensión cultural e ideología: Las actividades de la Biblioteca de la Universidad de Zaragoza durante la Guerra Civil (1936-1939)

The aim of this article is to analyze the specific tasks in the field of cultural extension carried out by the Universidad de Zaragoza (BUZ) during the Spanish Civil War (1936-1939): The custody and deposit of some private collections confiscated; the participation in actions of ideological proselitism and patriotic affirmation; and finally, the frustrated attempt to become one of the headquarters of the itinerant bibliographical exhibitions in Italy and Germany. For this, documentary sources from various archives have been used and the specific bibliography on the subject was consulted. The article concludes that the libraries, especially the BUZ, were fully integrated into the war machine of the sides in conflict, becoming an effective propaganda weapon.