This editorial introduction presents the aims and contents of a special issue devoted to cultural policies in Ibero-America. The issue provides a wide-ranging overview about the subject. In addition to papers focused on the development of cultural policy in specific countries, it also includes articles analyzing particular cultural policies in a transnational perspective, paying attention to their multiple programmatic transferences. It also includes articles centred on the development of cultural diplomacy and institutional networks within this area. In this way, it intends to highlight the commonalities among countries and the relations between them, so offering a new and deeper vision of the development of cultural policies in the Ibero American region. In this introduction we offer some theoretical keys for analyzing this development, in particular the notion of family of nations proposed by Castle (1993) and we evaluate its applicability to the case and beyond.