The Progressive Book Test by Michael O'Brien (Animal Farm) Available in Spanish or reach a mastery level

or reach a mastery level that will unlock a new cheat-code to break your spectators

Pro-level genius

Spectators can remove the bill and will find nothing inside the envelope

I can't wait for it's release"

and perform a card trick

The Progressive Book Test by Michael O'Brien (Animal Farm) Available in Spanish or reach a mastery levelYour browser does not support the video tag. Your browser does not support the video tag. Your browser does not support the video tag. My absolute favorite mind reading tool is the Book Test. A Book Test is a special prop disguised as an ordinary book that allows you to read a spectator's mind. With so many of these on the market, how can you possibly know which version of this prop to choose? For me, It all comes down to three simple things: Is it