It's a Lu Lu by Docc Hilford - Book

A perfect startling new way to read minds! Imagine working high end night clubs with a deck of cards and a handkerchief. And getting paid good money for ten minutes of amazing mentalistic entertainment. That is exactly what Docc Hilford does with his blindfold act, It's a Lu Lu! And now you can do it too. Effect: Two spectators shuffle a full deck of cards. The performer asks a woman to help him by having three people select a card each. These are of course, free selections, as the performer doesn't even see who participates. The cards are shown to others in the crowd, but not tho the performer. The cards are returned to the deck and the woman cuts the deck repeatedly. Now the performer is blindfolded with an ungimmicked blindfold, legitimately blinded. Cards are held up one at a time and discarded. But when the audience sees a selected card, they all "THINK" the word "STOP" and the performer announces that the card held is one that was selected. Although he has not seen the card a