Roy is a recognized global educational expert with over 30 years in the development of the school system. He is much appraised for his many years of scientific research into what intelligence is, how to improve the operation of the school and how teachers can teach better. Roy is an expert in intelligence and is the inventor of "The Brain Environment Complex Theory" which presents a new concept to what intelligence is and how children learn. His 7 books are said by professors of education around the world to be some of the best books written about school, society, and learning.