Mr. Shurtleff also wrote the reference guide "Audition: Everything an Actor Needs to Know to Get the Part," which was published in 1978 with an introduction by Bob Fosse. He wrote the book after becoming frustrated by the unpreparedness of the actors he would see at auditions. It was a best-seller and remains in print. One the book's best-known aspects is a list of "12 guideposts" actors must follow, such as "Relationships—how to create them onstage" and "Conflict—what are you fighting for?"