“…Critical cataloguing, which translates into the use of critical knowledge and thinking in cataloguing (Olson, 1997), has sought to study cases of social injustice, misrepresentation and negative biases, offensive terminologies, and hegemonic and oppressive hierarchical structures in the representation of communities and identities in KOSs and library catalogues (Dobreski et al, 2022;Perera, 2022;Snow and Dunbar, 2022). These issues have been discussed by authors whose studies have addressed the representation of various concepts in KOSs -for example, religion (De Miranda and Da Silva, 2019), ethnicity (Adler and Harper, 2018;Simo ˜es, 2010), gender identity (McDonald, 2020) and sexual orientation (Christensen, 2008) -with a particular focus on the Library of Congress Classification and the Library of Congress Subject Headings, and also the UDC, although to a lesser extent (e.g. Courbières, 2013;Santos et al, 1999;Simo ˜es, 2010).…”