Theories of governance took shape partly in reaction to a dominant perspective in which social control was perceived as primarily mobilized by and confined to the nation-state. This perception is particularly striking in the literature of political science and international relations (Keohane 1982; Baldwin 1993). An objection to this state-centered view was raised with the catchphrase "governance without government" (Rosenau and Czempiel 1992). Theories of governance do not imply that states and governments disappear (e.g. Pierre 2000). Rather, they emphasize that the study of governance should not start from an exclusive focus on the state. Avant et al. (2010), for example, point to the multitude of actors involved in global governance, ranging from the great diversity of international organizations, multinational corporations and professional associations to advocacy groups, and these authors stress the diversity of their functions. Broadly speaking, these actors "create issues, set agendas, establish and implement rules or programs, and evaluate and/or adjudicate outcomes" (ibid.: 10). Theories of governance have turned attention to other important global and regional actors, to world society and, increasingly, to the interplay of states with other local and global actors, such as international bodies, corporations, civil society organizations and professional networks (for an overview, see Ansell and Torfing, Introduction in this Handbook). This has led to the development of theories and empirical studies of how these many diverse actors interact, network, collaborate and sometimes compete across sectors and levels. This chapter presents a perspective on governance in which the interplay of multiple actors is key but processes, rather than specific sets or groupings of actors, form the primary units of analysis. This framework has been developed to capture the organizational and institutional dynamics of transnational governance (see Djelic and Sahlin-Andersson 2006). The chapter is structured as follows. After a brief presentation of the broad background to this developed framework, the next section presents the notion of a transnational world. Then come two sections presenting the principal characteristics of transnational governance: distributed yet organized governance and the multiinstitutional embeddedness of governance processes. The following section describes how these features tend to result in self-reinforcing and ambiguous processes. In a final section three important topics for a future research agenda on transnational governance are presented. This framework on transnational governance took shape primarily as a result of empirical studies of "regulatory activism" (Djelic and Sahlin-Andersson 2006, chap.