A fine introductory text which borrows from William Ball, Uta Hagen, and others to create a system that uses actor's tactics to divide a script into beats (which you, the director, then title individually, after you have notated them a certain way in precise places in your oversized margins - Knopf's finickiness about how to appropriately mark a script is exactly the sort of thing that makes this book perfect for college students, but a bit rigid for anyone else). Despite the promises in the introduction, his system is so entirely actor-centric that I'm not sure how helpful it is to a designer, and although he mentions his system's universality he absolutely ignores non-realistic plays in all of his examples, but in all it provides a reasonable introductory technique for undergrads.