Recent LHCb results

This article contains a summary of results obtained by the LHCb experiment at CERN concerning CP violation and rare decays of b quarks, obtained from 7-8 TeV pp collisions at the LHC. Particular attention is given to recent constraints to new physics beyond the Standard Model, derived from observations of precision observables involving leptonic final states. These include dimuon decays of B-mesons, b → sμ+μ− transitions, and first precision measurements of the CKM matrix phases βs and γ.