This book is about a world where diplomats engage more in societies at home and abroad, and citizens participate more in diplomatic practice; where public diplomacy is now central to most diplomatic concerns; where digitalization and artificial intelligence empower and disrupt diplomacy&s institutions, tools, and methods; and where large-scale geopolitical conflicts and complex global problems require collaborative cross-border solutions. Thought leaders and innovators in this volume consider the impacts of these changes, illuminating what&s new, what&s at stake, and what&s needed to reimagine diplomacy when states and society are deeply interconnected. Their insights and ideas challenge next generation scholars, practitioners, educators, and policymakers to think differently about the relevance and value of diplomacy and its public dimension in global affairs.