2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/2851In this overview of the key properties of globular cluster (GC) systems I show that the GCs in elliptical and spiral host galaxies have more in common than previously thought. After contrasting these properties I briefly comment on GC formation.6 pages, Latex, 4 figures, To appear in the proceedings of IAU Symp. 207, "Extragalactic Star Clusters", eds. Grebel, Geisler, MinnitiAstrophysicstext