I'll go with an unconventional choice: Michael Kleber's _The Best Card Trick_: http://www.northeastern.edu/seigen/11Magic/Articles/Best%20Card%20Trick.pdf http:

I'll go with an unconventional choice: Michael Kleber's _The Best Card Trick_: http://www.northeastern.edu/seigen/11Magic/Articles/Best%20Card%20Trick.pdf http://www.northeastern.edu/seigen/11Magic/Articles/Best%20C...