Populism has fundamentally altered many aspects of world politics. As President Donald J. Trump’s recent threats to U.S. allies and his imposition of wide-ranging tariffs have made all too clear, “populist” leaders can have a major impact not just on domestic but also foreign policy. The first edition of Populism and Word Politics was the first book-length treatment of populism from an International Relations (IR) perspective. The second edition reflects the continuation and evolution of populism in world politics, and includes a new introduction, updated chapters and an additional contribution on populist security narratives. Written by leading experts in the field, the chapters in this volume explore the many ways populism and world politics intersect, including the importance of populist leadership and global media as well as populism’s impact on trade and the liberal international order. Presented in an accessible and clear style, this book is an essential resource for students and IR scholars, as well as practitioners seeking a deeper understanding of the phenomenon.