  These notes provide an introduction to polarization effects in deep inelastic
processes in QCD. We emphasize recent work on transverse asymmetries,
subdominant effects, and the role of polarization in fragmentation and in
purely hadronic processes. After a review of kinematics and some basic tools of
short distance analysis, we study the twist, helicity, chirality and
transversity dependence of a variety of high energy processes sensitive to the
quark and gluon substructure of hadrons.
