This ESRF User Organisation Committee (UOC) school will provide foundational training and hands-on data-analysis tutorials for users who have recently carried out scanning 3D X-ray diffraction (s3DXRD) or texture tomography (TexTOM) experiments at the ESRF at beamlines like ID11, ID13 or ID3. Both techniques use the same scanning-diffraction measurements to map non-destructively, in three dimensions, the orientations and lattice strains of the crystal grains inside a material: s3DXRD resolves individual grains in detail, while TexTOM handles more strongly deformed microstructures. The school will also give participants a forum to discuss the new scientific opportunities opened by the upgrade of ID11, one of the ESRF’s main grain-mapping beamlines.