The Czech Social Science Data Archive (CSDA) at the Institute of Sociology of the Czech Academy of Sciences accesses, processes, documents and stores data files from social science research projects and promotes their dissemination to make them widely available for secondary use in academic research and for educational purposes. CSDA participates in international networks of data organisations and it is the Service Provider for the Consortium of European Social Science Data Archives (CESSDA). The major objective for CESSDA is to provide seamless access to data across repositories, nations, languages and research purposes. CESSDA encourages standardisation of data and metadata, data sharing and knowledge mobility across Europe.