This book has one major gaff. It tries to squeeeeeeze in the improv basics, while it teaches the advanced "Harold". I mean, improv basics are scaterred throughout this book like debris in an O'Hare downdraft. For example, environment, objects and emotion aren't covered until the end of the book. What's a new improviser to think?
I wish the progression of this book was more logical: Improv basics, short scenes, long form.
Long form improv is made up of short scenes, despite the mantra of disgruntled long formers who blast short form as "jokey". Long form is an advanced skill, with a foundation in the basics of short scenes, like it or not. (Long form proponents who pooh-pooh short form are a lot like haute chefs who scorn vegetables and meat.) Likewise, the authors here become so carried away with the magic of associations between long form scenes, that most of their confused neophyte readers would barely be able label who they are in a single scene.