This trick requires little preparation - take your blank cards and mark them with colors - the first card you show to spectator will be marked just by one color that you!ll predict, other cards will be marked by same matching color one one side and random colors on the opposite side (also shown in video below).

Step by step

  1. Show your cards to spectator - be careful to show them only from just one side so that spectator can't see what you prepared
  2. Place cards inside the book - again be careful to place them from a direction where spectator will see only the prediction color after you turn over the book (please refer to video below for more details)
  3. After all cards are placed inside the book, ask spectator to select cards that should be removed
  4. When you have just one card left inside the book, flip it over and reveal that your prediction matches with color that is left ;)