Some recent developments in theory and phenomenology of neutrino mass and mixing are described. These include new results in theory of neutrino propagation: neutrino oscillograms of the Earth and non-linear neutrino physics with applications to supernova neutrinos. Results of the bottom-up approach to understanding neutrino masses and mixing are summarized. Emergence of the "standard neutrino scenario" and searches for physics beyond this scenario are discussed.

PACS numbers: 14.60.Pq, 14.60.St