2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45751A review of the present knowledge on polarized parton distributions is given. The effects of perturbative evolution on these distributions are discussed qualitatively and a comparison of various recent parametrizations is made.Talk given by TG at the Workshop on the Prospects of Spin Physics at HERA, DESY-Zeuthen, August 28-31, 1995, 9 pages, LATeX, 4 figures availabe as .uu-fileHigh Energy Physics - Phenomenologytext