This edited volume highlights the work of a new generation of scholars who have reignited the study of the Indonesian left, and the PKI in particular, across continents and disciplines. It reinterprets the Indonesian left and its associated organisations not simply as a local and national phenomenon but as a force of global relevance. Historiographically, the history of the left has always been constructed in conversation and contestation with, on the one hand, the colonial and postcolonial state and, on the other, the communist epicentres of Moscow and Beijing. Moving beyond party-centered narratives, the chapters in this volume demonstrate how diverse global networks and ideologies were translated and transformed within very local and situationally-specific environments. In doing so, they foreground the contributions of people and organizations often relegated to the margins of the PKI, illuminating the Indonesian left as a dynamic site of transnational and local interaction.