  This is an introductory review of the main features of leptogenesis, one of
the most attractive models of baryogenesis for the explanation of the
matter-antimatter asymmetry of the Universe. The calculation of the asymmetry
in leptogenesis is intimately related to neutrino properties so that
leptogenesis is also an important phenomenological tool to test the see-saw
mechanism for the generation of neutrino masses and mixing and the underlying
theory beyond the Standard Model.
