“Essential Theatre” by Oscar G. Brockett and Robert J. Ball is a 9th edition textbook published by Wadsworth in 2007. It covers subjects such as Literary Criticism and Performing Arts, focusing on Theater, Drama, and Theater History & Criticism. The book is in English, has 512 pages, and comes in Trade Paperback format. It has an ISBN of 1305411072 and 9781305411074.