A Blue backed decks of cards are removed from the box. A spectator is asked to name ANY card. The card is removed and placed to one side. The card is turned face down to show it has a RED back with the words HA! HA! HA! on the back, This is the only RED backed card in the deck. The deck is now turned face up, every card is now BLANK. All the faces have vanished. Easy to do.
