2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/190464I review some issues related to short distance QCD and its relation to the experimental program of the Large Hadron Collider (LHC) now under construction in Geneva.Talk at the conference QCD2002 at IIT Kanpur, India, November 2002. Ten pages with 12 figuresHigh Energy Physics - Phenomenologytext