The Art Of Switching Decks By Roberto Giobbi And Hermetic Press In-Store Only As the sub-title makes it

As the sub-title makes it strangely clear

" The principle is very old and likely originated as an early method for counterfeiting money

OMNIBUS focuses on the most popular card effect in the history of magic

You then put a drop of water on the impression and rub it in until the image disappears

so this gimmicked coin will be attracted to any magnet

The Art Of Switching Decks By Roberto Giobbi And Hermetic Press In-Store Only As the sub-title makes itThe strongest card tricks most often depend on a stack or special deck. Unfortunately, if you start with a gaffed deck, as soon as you have accomplished the impossible feat, its very strength causes audiences to say, "Let me see those cards!" With a deck switch, they can, because you just switched the gaffed deck for a normal one, which they can even take home! A deck switch can also allow you to start with an ordinary deck, convince everyone it's you