The Multiple Overlapping Deprivation Analysis for the European Union (EU-MODA) compares the material well-being of children across the EU member states, using data from the child material deprivation module of the European Union Statistics on Income and Living Conditions (EU-SILC) 2009. Embedded in the multidimensional poverty measurement literature, EU-MODA applies internationally accepted standards for the construction of indicators and dimensions of child well-being. The analysis ranges from indicator and dimension headcounts, overlaps between several dimensions, decomposition of the adjusted multidimensional deprivation headcounts, to overlaps between monetary poverty and multidimensional deprivation. This technical note describes the EU-MODA methodology in detail.