Neutrino physics

This is an update of the lectures previously published in arXiv:1708.01046. The topics discussed in this lecture include: general properties of neutrinos in the SM, the theory of neutrino masses and mixings (Dirac and Majorana), neutrino oscillations both in vacuum and in matter, as well as an overview of the experimental evidence for neutrino masses and of the prospects in neutrino oscillation physics. We also briefly comment on the relevance of neutrinos in leptogenesis and in beyond-the- Standard-Model physics.