2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46528I review recent theoretical results on polarized deep inelastic lepton nucleon scattering. Some specific issues, like $Q^2$ evolution of structure functions, the small $x$ behaviour, and the determination of polarized parton densities, are discussed in some detail.8 pages, LaTeX with procl.sty (included), 1 figure included by psfig. Summary talk of WG5 at the DIS '96 Workshop, Rome, April 1996High Energy Physics - Phenomenologytext