Praise for the previous editions:"A great [introduction] to international organizations." -Bessma Momani, International Journal"Putting the pieces of the puzzle together in a highly readable way, International Organizations provides a comprehensive overview of the many actors, processes, and challenges involved in the complex subject of global governance." -Anne-Marie Slaughter, Princeton University"Detailed and comprehensive, this accessible IO text may well set the standard for years to come." -Kent Kille, College of Wooster "An extraordinary primer for any student of international relations.... This book collates and masterfully illustrates the varied processes that drive contemporary international organizations." -UN21 Newsletter, ASILAstounding, but true ... the newest edition of International Organizations surpasses its predecessors! The fourth edition of this award-winning text has been thoroughly revised and updated to capture nearly a decade of new developments affecting global governance: the Covid-19 pandemic, Russia's invasion of Ukraine, the rise of populist nationalism, implementation of the SDGs, the youth climate-justice movement, and much more. There is also an entirely new chapter on human security. As before, the authors provide a comprehensive, in-depth examination of the full range of international organizations.