$B$ physics anomalies

Multiple hints of a lepton flavour universality violation have been reported byBelle, BaBar and LHC experiments in B meson decays. More convincing evidencesarise if the measurements are considered together, and several New Physicsmodels have been proposed to provide a coherent explanation. The LHCb experimentplays a leading role in this regard, and after the end of Run 2 it has collectedan unprecedented amount of b hadron decays. In this note, an overview of theanomalies is presented in the light of the latest measurements.