xiWe are very grateful to Dr Donald Gene Pace, former Dean of Humanities
and Social Science at Claflin University, USA. He was the first co‐author of
this book, before he retired. His contribution to this book cannot be under-
stated. We are thankful for his early contributions to the first few chapters of
this book.
We are also very grateful to Karen Brady, who kindly edited, advised and
made commentary to improve this manuscript.
Omar Bagasra is thankful to his undergraduate and graduate students whose
dedication to the Autism Project cannot be underestimated. They spent count-
less hours and occasional weekends to carry out some of the most critical
experiments that contributed to this work.
We are thankful to our friends and colleagues for their moral support and
encouragement.