This encyclopedia serves as a comprehensive reference work designed to document the global history, evolution, and technical aspects of theatre and performance arts. Compiled by the editorial team at Oxford University Press, the text synthesizes historical scholarship and contemporary performance studies to provide a structured overview of theatrical traditions ranging from antiquity to the modern era. It functions as a foundational resource for students, scholars, and practitioners seeking precise definitions and historical context for theatrical movements and terminology.

Experts and academic reviewers frequently cite this work as a standard, reliable reference tool for theatre studies. Readers often note the academic density of the prose, which balances scholarly rigor with accessibility for a general audience.