  Understanding flavor physics is one of the most important tasks of particle
physics today, which is motivating an extraordinary experimental and
theoretical investigational effort. Important progress in this field has
already been achieved in the last few years, with Lattice QCD calculations
playing an essential role in this effort. I will describe some lattice
contributions to the studies of flavor physics by focusing particularly on the
determination of the CKM matrix and on the study of CP violation in the
Standard Model.
