“…In order for library professionals to be able to apply the Transparency Act, in their position as managers of units required to present accounts and as professionals responsible for the use of various resources, in previous studies, observable, measurable indicators were proposed to identify achievements, changes or performance in the area of transparency (Pacios 2016). Transparency has been analysed in Spanish public libraries (Pacios et al 2018) and in university libraries that are members of the Consortium of University Services of Catalonia (CSUC) (Rey and Rodríguez-Parada 2018; Rey, Rodríguez-Parada, and Camón 2019), to test the validity of the indicators. The set of indicators is based on the application of Chapter II of the Transparency Act, which addresses active publishing and reflects the obligation of government bodies and associated entities and institutions to permanently publish certain public information, as required by the legislation, on their transparency portals or websites, to guarantee the transparency of their activity.…”