USIA Fellow Dominic O’Brien


Dominic O’Brien is Honorary/Advisory Memory Champion, and a Fellow (Honours) of the United Sigma Intelligence Association. 

Dominic O’Brien is the Winningest (eight time) World Memory Champion. He is known as Multiple Guinness World Records Holder for committing to memory a random sequence of 2808 playing cards (54 packs) after looking at each card only once.

Mr. O’Brien is also an author of Best Selling Books, His Best-Seller, “How to Develop A Brilliant Memory – Week by Week” ranked Number One on Amazon UK.