2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104554The study of exclusive final states in two photon collisions is motivated by the range of physics that can be explored from chiral dynamics, to resonance physics to quark dynamics, all within a few GeV of threshold.9 pages, 6 figures. Introduction to the session on exclusive channels at Photon 2005, Warsaw (August/September, 2005)High Energy Physics - Phenomenologytext