There are also memory superstars. Dominic O'Brien was first interested in memory atter he left school and he started to train his memory. In 1991 he won the words memory championships. He was World Memory Champion seven more times between 1992 and 2001. In 2002 Dominic memorized the order of cards in fifty-four packs of playing cards. That's 2,808 cards The world record was 2,704 cards. When he repeated the cards, Dominic was wrong only eight times.