2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211317We report on the current status of knowledge on inclusive quarkonium production in high-energy photon-photon collisions. As a perspective for the LHC, we compute various production cross sections via direct photon-photon fusion in ultra-peripheral pp, pA and AA collisions at the LHC using the tree-level quarkonium amplitude generator MadOnia.6 pages, 4 figures. Invited talk given by J.P. Lansberg at the Workshop on "High-energy photon collisions at the LHC", April 22-25, 2008, CERN, Switzerland. To appear in the proceedingsHigh Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext