Duplica by José Prager is a perfectly pure method for reading minds.

Using just an index card, an envelope, a pen and the knowledge in this manuscript, you will be set to create a devilishly deceptive moment of mystery at any time.

José has refined this method through many years of performance and in stripping away all the unneccessary movements and illogical elements of some popular techniques, Duplica was born.

- No impression devices

- No Flaps

- No holes or slits

- No transparency 

- Perform surrounded

In our art, the Devil is in the details. In Duplica, no detail is skipped in creating the most impossible, yet workable method for mind reading to date.

This is essential reading for all mind readers and mystery performers alike.