This chapter introduces a collection of works from thought leaders and innovators who explore the growing societization of diplomacy at home and abroad and near universal acceptance of public diplomacy’s centrality in contemporary diplomatic practice—what we call diplomacy’s public turn. Contributors share ideas and insights on three important trajectories in a shifting diplomatic landscape. First, the complexity of state-society relations with stunning growth in numbers, categories, and impacts of diplomatic actors and publics. Second, a redefined diplomatic operating environment due to the expanding scope and scale of societal interconnections, disruptive geopolitical conflicts, societal polarization, and declining trust in institutions and mediated information. Third, the transformation of academic study and everyday diplomatic practice resulting from blended digital and analog technologies, rampant disinformation, and the threats and opportunities of artificial intelligence. This chapter provides a preview of the authors’ views on these transformational changes and the impact of diplomacy’s public turn on diplomacy’s future.