Interesting book (the third one from Paul Brook) which deals exclusively with pre-show technique in mentalism, a subject about which not much material is available. A number of effects illustrate the author's ideas and techniques.
This is a very interesting book, although with the usual repetition as in all Brook's books, that explains in details how to create dual reality and how to make sure the pre-show works. A number of ideas are exposed, something I've never thought about but that I can see may be very useful and should be considered when doing pre-show. I wish I had this book years ago: it would have helped a lot!