Precise measurements of the lepton properties provide stringent tests of the
Standard Model structure and accurate determinations of its parameters. We
overview the present status of a few selected topics: lepton universality, QCD
tests and the determination of alpha_s and m_s from hadronic tau decays, the
anomalous lepton magnetic moments and neutrino oscillations.Comment: Invited talk at the Seventh International Workshop on Tau Lepton
Physics (TAU02), Santa Cruz, Ca, USA, Sept 2002, 12 pages, LaTeX, 9 eps
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