The statistical bureau of the EU
Host: EU Commission
Source type: Primary
The statistical database of the European Union, containing all official statistics of the EU member countries and the most important partner countries. A really good alternative to certain countries' national statistics!
All stats are harmonized which make them comparable across borders.
A good starting point is Statistics Explained, an official Eurostat website, presenting statistical topics in an easily understandable way. You will find links to the tables, related publications and sources so you can make your own tables and work with the data.
Access: Eurostat main page
Supershort guide (pdf)
Statistics Explained (website)