A printing effect inspired by the Hofzinser Ace Problem. 'WHAT IT ISN'T' is absolutely perfect for the strolling or table-hopping performer. You can launch into the effect at any time during your set and the re-set is quick and easy. This is a stunning trick that is very easy to do - Cameron Francis has done it again! From a red backed deck, a card is selected and lost back into the pack. Four blue backed cards are introduced - they all have blank faces. The magician announces: "I'm going to use these blank cards to tell me what your card ISN'T!" One by one, the magician magically prints the blanks with the faces of the mates of the selection! "These three cards, tell me what it ISN'T. This last blank is going to tell me what your card IS - it will change places with your card in the deck!" The magician gives the last blank a flick - nothing happens. "Oh, I actually only made the backs change places!" The blank card is turned over and it now has a red back! The deck is spread, and one card has changed to blue - it is of course the selected card! INCLUDES TWO SEPERATE HANDLINGS - ONE OF WHICH USES ORDINARY CARDS AND INTRODUCES THE 'CF SWITCH' TO THE MAGIC WORLD - A METHOD FOR SWITCHING ONE CARD FOR ANOTHER WHILE LEAVING THE SWITCHED OUT CARD REVERSED IN THE DECK! 'WHAT IT ISN'T' is a 14 page manuscript illustrated with 21 photographs. The booklet version, available now comes complete with the gaff cards included.