An ESP Deck consists of 25 symbol cards, originally designed by Dr. Joseph Rhine 1927 to test Extra Sensory Perception at Duke University. ESP Deck, Anglo contains:
- 25 ESP cards (5 of each: circle, cross, wavy lines, square, star)
- 25 ESP cards (5 of each: circle, cross, wavy lines, square, star), secretly marked on their backs
- 4 double faced cards(force card: circle).