Echo Book Test | Vincent Hedan (Dreams) Bro they can switch cards among

they can switch cards among themselves - and you'll still know who has what

Cigarette Vanish

making it perfect for portability and display

The viewer sees the stripes on a lighter transform from a curve into a straight line

Sarah Trustman and David Trustman

Echo Book Test | Vincent Hedan (Dreams) Bro they can switch cards amongThe Echo Book Test is a project I kept secret for the last few years I use Echo when I want a personal impact; when I want an easy, foolproof book test; and when I want to involve the audience emotionally. But Echo is much more than a simple book test First of all, Echo is a normal book: anyone can read it without suspecting anything, in fact it's available on Amazon. In secret, Echo uses a classic principle by Larry Becker (which he allowed me to use