Raymond is a Board Certified Behavior Analyst (BCBA) with a Master of Science in Applied Behavior Analysis from St. Cloud State University, and currently pursuing his doctoral degree at the University of Bristol in education. Raymond is the conference chair of Hong Kong Association for Behavior Analysis (HKABA), the member of Association for Behavior Analysis International (ABAI) and the part-time lecturer of a master program of ASD in the Open University of Hong Kong. For over 18 years, Raymond has been teaching individuals with ASD of different ages and functioning levels in 1 on 1, group and school settings at Autism Partnership under the on-going training from Dr. Ron Leaf and his associates. Since 2004, he has been specializing in professional training for therapists, supervisors, schoolteachers, and parents internationally. He consults in China, Singapore, Japan, Malaysia, Philippines, Korea, South Africa, and Russia. Currently, he is the Training Director of AP Hong Kong, the clinical director of AP Philippines, and the voluntary consultant of AP Foundation. In 2014-15, Raymond developed 6 mobile applications for individuals with ASD. Raymond has been actively promoting autism awareness and effective treatment by conducting workshops, writing articles for his 2 columns, and hosting a radio program.