PROOF is the first collaboration between Nikolas Mavresis and John Carey - and it delivers a clean, layered piece of modern mentalism that feels impossible from start to finish.

A spectator simply thinks of one image from a small packet of picture cards. Nothing is written down. Nothing is said. Their thought remains completely private.

You guide them through a short test - performed just 3 times. It feels innocent... until the cards themselves begin to reveal the truth.

First a subtle hint...

Then a stronger clue...

Finally, an impossibly direct revelation that locks everything in!

By the end, there's only one image it could be. You don't guess it...

You prove it!

Supplied with all the necessary cards and full video instructions, PROOF is elegant, deceptive, and devastatingly clear.