This is the first world history of empire, reaching from the third millennium BCE to the present. By combining synthetic surveys, thematic comparative essays, and numerous chapters on specific empires, its two volumes provide unparalleled coverage of imperialism throughout history and across continents, from Asia to Europe and from Africa to the Americas. Only a few decades ago empire was believed to be a thing of the past; now it is clear that it has been and remains one of the most enduring forms of political organization and power. We cannot understand the dynamics and resilience of empire without moving decisively beyond the study of individual cases or particular periods, such as the relatively short age of European colonialism. The history of empire, as these volumes amply demonstrate, needs to be drawn on the much broader canvas of global history.