Guinness world record holder Mr. Krishan Chahal is a Ted Speaker, Trainer, Author, Businessman and the world’s foremost authority on the memory improvement. He is known as Memory King. Mr. Chahal has also created the world’s toughest memory record by memorising value of pi up to 43,000 decimal places. Millions of people and esteemed organisation like Davidson Academy Naveda(USA), IIT Kanpur, Indian Air Force, DRDO, Indian Navy, NPCIL have benefited from his highly effective memory improvement programs. He has authored 6 books on memory improvement. His best book is encyclopedia on memory improvement that is 'Art of Memorising' He has influenced millions of people around the world with his outstanding methods on memory improvement.