2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42520A short review is given of QCD spin physics and its major aims: obtaining the polarized gluon density, the transversity distribution and understanding single spin asymmetries. The importance of the Drell-Yan process, the role of electron-positron colliders and the use of polarization to probe other, not spin specific physics are emphasized.4 pages, no figures, uses moriond.sty; presented at the XXXVIIIth Rencontres de Moriond on QCD and High-Energy Hadronic Interactions, Les Arcs, France, March 22-29, 2003High Energy Physics - Phenomenologytext