One advantage of other stacks to Mnemonica stack has been superior built in gambling demonstrations.
Well, this volume of Juan's letters removes that. It includes a powerful black jack and poker
demonstration which is among the best for any stack. If you use Mnemonica, you need this volume as
once you learn the routine, you can almost instantly go into this demonstration when the subject
arises. And the funny thing is, there are no hard sleights or unnatural steps. The genesis of this
routine truly must have been divine inspiration!