You shine a light (from your cell phone) through the back of the playing card and see one card value

allowing you to perform a number of diabolical effects

Comes with online instructions

Powerful & visually stunning

Card Control | Arthur H Buckley Carnazzo You shine a light (fromThis profusely illustrated book demonstrates, step by step, the astonishing card magic cultivated by one of the premier sleight of hand artists of the 20th century. It presents maneuvers that have left theater audiences amazed and that card playing professionals have used to great advantage. Card Control is not a book for beginners, but it will help those with basic card expertise reach new levels of performance in their art. Among the moves included