THIS DEMO IS FROM THE MANUFACTURER:
Hold an ordinary-looking notepad in your hand. At your command, the notepad instantly and visibly changes to a real deck of playing cards!
Really, really easy to do! If you can flip your wrist, you can do the trick! Plus, this one comes with instructions on DVD, so you can SEE exactly how to do the trick!
And think of the possibilities! Ask your spectator to think of a card, start to write the name of the chosen card on the notepad, then say "Wouldn't it be easier if I just made that card appear?" and BAM! The notepad changes to a deck of cards. What a great way to introduce an effect like the Invisible Deck!