  Direct techniques for cosmic ray observations have reached an unprecedented
level of precision, unveiling fine-details of the energy spectra. I will
introduce the evidence for new spectral features which has been accumulated by
new experiments over the past few years, and review the main ideas invoked in
the theoretical explanations of the revealed spectral breaks and elemental
spectra non-universality. I will also briefly comment on the complementary
situation of antimatter observations.
