Book Mark by Nahuel OliveraToday, we know many routines about mentalism thanks to books, but for most of them you need a special book but thanks to this creation your job will be easier. EFFECT: The magician makes a prediction and asks a spectator to open a page in the book, which says the number page or simply choose one randomly while going quickly through the pages. The artist has on his hand a TRANSPARENT bookmark and the viewer will tell where to place it: on the first