2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47137The state of the art of the theoretical calculations for heavy quarks photoproduction is reviewed. The full fixed order next-to-leading order massive calculation and the resummation of large log(p_T/m) terms for differential cross sections are described. The implementation of a non-perturbative fragmentation function describing the c -> D* meson transition is also discussed.11 pages, LaTeX, 10 plots included. To appear in the Proceedings of the Ringberg Workshop ``New Trends in HERA Physics'', 25-30 May 1997High Energy Physics - Phenomenologytext