Michael Shurtleff (July 3, 1920, in Oak Park, Illinois – January 28, 2007, in Los Angeles, California) was a major force in casting on Broadway during the 1960s and 1970s. He wrote Audition, a book for actors on the audition process. He also wrote numerous one-act and full-length plays.
A user "Timmy" recounts his experience reading Michael's Shurtleff book on the "Amazon" website on March 21, 2017:
"As a trainer in many areas and skills, this book is disappointing because it doesn't lay out the "how-to" that it talks about in the chapters. For instance, in the chapter about HUMOR, it talks a lot about the importance of "finding the humor", but not about how an actor is supposed to portray the humor in a script. To be a better book, it would give specific examples of how one would take sides and make that happen."