Behind the mask, Appel notes, the stu-dent is free to create a personality; paradox-ically, because the mask hides the self, it en-ables the student to probe more deeply into himself. "This book describes, defines, and dis-cusses the mask characterization process, providing the theory behind the exercises and the step-by-step procedure in the organ-ic development of the character from the masks," Appel notes. The manual is divided into two parts: "The Instructor's Guide" and "The Actor's Guide." There is also an intro-ductory chapter, "The Class Structure," which explains mask characterization pro-cedures in the classroom, and a sample class schedule may be found in the back of the manual. This book adds a new dimension to actor training and learning. It is essential to aspir-ing actors seeking new ways to create honest dramatic characterizations.