2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211004Recent results on prompt photon production in photoproduction, deeply inelastic scattering and hadronic collisions are reviewed and the importance of photons for LHC experiments is briefly discussed.10 pages, 12 figures, Talk given at the International Conference Photon 2007, Paris, July 2007, to appear in the proceedingsHigh Energy Physics - Phenomenologytext