Amazing Math Magic by Jeff Sinclair

Numbers, cards, coins, and shapes: with these, and a few mathematical principles, you'll turn into a magician Just gather a few very ordinary, easy-to-find items (paper, pens, a calculator, dice, pennies, scissors), practice your patter a little, step in front of an audience-friends, family, maybe even your teachers at school-and prepare to astound them. Guess the number someone will choose; try some math telepathy; make mobius strips out of paper; and move "from one end to another"-a routine that uses a stack of cards for a very unique effect. Do an "incomplete prediction," a trick that seems as if it's going wrong...until you produce a surprise ending. Every one is easy to master-but no one else has to know that