2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/188190We give a brief introduction to chiral perturbation theory in its various settings. We discuss some applications of recent interest including chiral extrapolations for lattice gauge theory.Commissioned article for Ann. Rev. Nucl. Part. Sci., 27 pp, 7 figsHigh Energy Physics - PhenomenologyHigh Energy Physics - ExperimentHigh Energy Physics - LatticeNuclear Theorytext