Intra-EU migration has been a much debated topic in the past decades and in particular between 2000 and 2010. During that time period several Eastern European countries became part of the EU and this spurred debates about the consequences it may have for EU migration patterns. With the accession of new member states to the EU in 2004 and 2007 and with the financial crisis in 2008 important drivers of migration were triggered and resulted in substantial flows across the EU. Despite this attention to intra-EU migration in the 2000-2010 decade, the public debate in the 2010-2020 seemed to be less dominated by intra EU migration but was heavily dominated by the 2015 refugee ‘crisis’. This paper by Jarl Mooyaart and Helga de Valk, which is part of the QuantMig project (deliverable 4.2), paints a broad picture of the developments, patterns and characteristics of intra-EU migration/mobility in the past decade.