Metadata
| ESS Reference Metadata Reporting Standards | A set of international standards for exchange of statistical information between organisations |
| Classifications | International statistical classifications and nomenclatures |
| Code lists | Code lists are predefined, organised sets of items that describe one or more statistical concepts |
| Legislation and methodology | EU legal acts and methodological manuals relating to statistics |
| Concepts and Definitions | CODED (Eurostat's Concepts and Definitions Database) and other online glossaries relating to survey statistics |
| National metadata | Links to national methodology webpages: concepts, classifications, survey methodologies, etc. |