This book investigates the administrative mechanisms and political structures that allowed the Roman Empire to maintain centralized control over vast, diverse territories for over a millennium. Barbara M. Levick, a distinguished scholar of Roman history, compiles a comprehensive collection of primary source documents to illustrate how the imperial government functioned in practice. By focusing on the intersection of central authority and provincial management, the text provides a framework for understanding the longevity of Roman rule.

Experts and educators frequently cite this work as a foundational sourcebook for students of Roman history due to its clear organization and accessibility. Readers often note that the text provides a necessary bridge between raw historical evidence and modern academic interpretation.