Pay equity, as a concept and outcome, is significant for libraries and librarians because it demonstrates the value of the library and information profession, and the significance of the work undertaken by librarians and allied professionals. The State Library's involvement in the NSW Pay Equity Case and precursor investigations into the worth of the library and information science profession contributed to public recognition of the professional stature of librarians. The case also highlighted the role and significance of libraries. The leadership role of the NSW Government in advancing progressive industrial relations was confirmed by the case and its outcomes.