scratch resistant acrylic

there was Mental Telepathy

The spectator places the card in the middle of the deck

No "gimmick" to find

Force-Buch - Poe: Der Rabe | Perkeo Hauss scratch resistant acrylicThe combination of a "direct" and "indirect" force book. "Indirect force" involves transferring the actual force to other, usually completely unprepared books, namely simply forcing a page number. Perhaps one of the most impressive applications is the "Psychometric Book Test," based on an idea by Dr. Jaks, further developed by Perkeo, and involving ten spectators in the audience and one assistant on stage. With direct force, a specific word is forced