Comprehensive overview of the inroads made by Complexity Thinking approaches and ideas in the study and practice of world politics. Why are policymakers, scholars, and the general public so surprised when the world turns out to be unpredictable? World Politics at the Edge of Chaos suggests that the study of international politics needs new forms of knowledge to respond to emerging challenges such as the interconnectedness between local and transnational realities; between markets, migration, and social movements; and between pandemics, a looming energy crisis, and climate change. Asserting that Complexity Thinking (CT) provides a much-needed lens for interpreting these challenges, the contributors offer a parallel assessment of the impact of CT to anthropocentric and non-anthropocentric (post-human) International Relations. Using this perspective, the result should be less surprise when confronting the dynamism of a fragile and unpredictable global life. Emilian Kavalski is Associate Professor of Global Studies at the Institute for Social Justice at Australian Catholic University, North Sydney. He is the author and editor of several books, including Central Asia and the Rise of Normative Powers: Contextualizing the Security Governance of the European Union, China, and India.