2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44445In these lectures I cover various aspects of Chiral Symmetry in the hadronic world from a pre-QCD perspective. I also discuss the absence of spontaneous symmetry breaking in d=4 large N O(N) models.23 pages, 9 figuresHigh Energy Physics - Phenomenologytext