His art was introduced to the United States at an exhibition at Cooper Union University in Manhattan and the Henry Gregg Gallery in Brooklyn by Dr. Rosa Martinez and Dr. Becke in January 2006.Fernandez, J. (2006). "Ping Lian, 12, is autistic and a hit in New York", The Star (Malaysia), 19 January 2006. Coverage of Yeak's artistic contribution as an individual with autism also include a feature in a documentary aired on the Australian ABC.Artistic autistic ‘stars’ in documentary 13 Sep 2005
