2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211230From 1992 to 2007, HERA, the first electron-proton collider, operated at cms energies of about 320 GeV and allowed the investigation of deep-inelastic and photoproduction processes at the highest energy scales accessed thus far. This review is an introduction to, and a summary of, the main results obtained at HERA during its operation.A review article: 75 pages, 43 figuresHigh Energy Physics - Experimenttext