  This talk reviews some of the hot topics in spin physics and related
subjects, including perturbative QCD predictions for polarized parton
distributions and their possible behaviours at small x, the Bjorken and singlet
sum rules and the treatment of higher orders in perturbative QCD, different
interpretations of the EMC spin effect including chiral solitons and the axial
U(1) anomaly, other experimental indications for the presence of strange quarks
in the nucleon wave function, implications for dark matter physics, and a few
words about polarization as a tool in electroweak physics.
