The new EUI ResData repository was launched at the Library’s open access roundtable in October 2017 and already hosts twelve substantial EUI research datasets. ResData provides EUI scholars with a sustainable solution for archiving research datasets, and supports the European Union’s mandate that – where possible – research data outputs be openly shared. Open data – a key pillar of open science – refers to the trend among scholars, government agencies and international organisations to share datasets, codebooks and software via the internet.