This book changed my life. I always use to overprepare my sessions anticipating my player's moves and imagining possible scenarios. This has made my games more like movies than an RPG. Thanks to this book I can now prepare an entire evening in less than an hour. Then I can spend the rest of my time being creative and making props and cool stuff for the table. Thank you Sly for this amazing book. Just get it... It's money well spent.