This book is an INVALUABLE resource. And I'm not a traditional actor, I'm an opera singer. I had to read this for a class on (what else?) auditioning, and loved it so much that I finished it the first day of class. Shurtleff's 12 Guideposts, carefully applied to just about any performance (I use them for arias, art songs, etc), can help create something nuanced and fascinating. As if the guideposts weren't enough, Shurtleff gives wonderful ideas on the nitty-gritty of auditions (how to present your past experience, what to wear, etc). I just can't say enough good about this book. When I perform an operatic scene that I've run through the 12 guideposts, I get comments like, "You're a great actress! You really have a theatrical flair!" Boy, does that feel good. I'd give this thing six stars if I could. I hate to even tell other people about this book, because then everyone can gain my edge.