From the mind of Paul Daniels, a trick that you can perform anywhere, anytime; all you need is your iPhone or iPad and an audience (and with the iPad version it can even be performed on stage).
You can perform this amazing effect with numbers on a banknote or on a receipt; in fact anything you want that contains a number or can be found using a number can be used. Your imagination is your only limit here.
The beauty with this effect is that it can be repeated immediately giving a different word in the same or even a different book! Then they can check out your phone and they’ll see nothing unusual or ‘special’.