2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211381The introductory remarks to the conference Photon 2007 organized at the Sorbonne in Paris in July 2007 are presented.9 pages, 7 figures, photon2007 style. Introduction to the conference Photon 2007, 9-13 July 2007, ParisHigh Energy Physics - Phenomenologytext