  This is a review article about neutrino mass and mixing and flavour model
building strategies based on discrete family symmetry. After a pedagogical
introduction and overview of the whole of neutrino physics, we focus on the
PMNS mixing matrix and the latest global fits following the Daya Bay and RENO
experiments which measure the reactor angle. We then describe the simple
bimaximal, tri-bimaximal and golden ratio patterns of lepton mixing and the
deviations required for a non-zero reactor angle, with solar or atmospheric
mixing sum rules resulting from charged lepton corrections or residual
trimaximal mixing. The different types of see-saw mechanism are then reviewed
as well as the sequential dominance mechanism. We then give a mini-review of
finite group theory, which may be used as a discrete family symmetry broken by
flavons either completely, or with different subgroups preserved in the
neutrino and charged lepton sectors. These two approaches are then reviewed in
detail in separate chapters including mechanisms for flavon vacuum alignment
and different model building strategies that have been proposed to generate the
reactor angle. We then briefly review grand unified theories (GUTs) and how
they may be combined with discrete family symmetry to describe all quark and
lepton masses and mixing. Finally we discuss three model examples which combine
an SU(5) GUT with the discrete family symmetries A4, S4 and Delta(96).
