  Several topics on CP violation in the lepton sector are reviewed. A few
theoretical aspects concerning neutrino masses, leptonic mixing, and CP
violation will be covered, with special emphasis on seesaw models. A discussion
is provided on observable effects which are manifest in the presence of CP
violation, particularly, in neutrino oscillations and neutrinoless double beta
decay processes, and their possible implications in collider experiments such
as the LHC. The role that leptonic CP violation may have played in the
generation of the baryon asymmetry of the Universe through the mechanism of
leptogenesis is also discussed.
