This book chronicles the landscape of American theatre companies from 1931 to 1986. It provides a comprehensive overview of the organizations that shaped American theatrical production over a significant period. The work details the evolution of these companies, their artistic contributions, and their impact on the broader cultural and historical context of the United States.

This reference work is likely regarded as a foundational resource for scholars and historians of American theatre. Its comprehensive scope and detailed documentation provide an invaluable record of theatrical organizations during a pivotal fifty-five-year span. The book's utility lies in its systematic cataloging of companies, offering insights into the infrastructure and evolution of the American stage.