The truth is, none of this routine is really original to Eric Stevens. He has taken ideas that are
already in print (and have been for many decades) and has republished them with very little original
insight.
Reading through the manuscript, I wondered how it was able to come to market when
everything within this booklet (and more) can be found (for a lower price) on a "25 Tricks" type DVD
as separate routines.
The thinking is good, but it is not original, and Eric Stevens gives
no credit where it is due. You are better off buying the required prop, and getting an introductory
DVD; you will learn more at a lesser cost.