This book is not what is seems, as a father of an autistic girl I was expecting the an autobiographical account from a parent, if that is what you want please read George and Sam by Charlotte Moore.
Professor Grinker is a research anthropologist from Washington, prompted by his experience of being the father of an autistic child he has started researching how autism is viewed within the varying cultures in the world. I am studying for a Masters degree in Autism and this book really ticked all the boxes. It has in-depth chapters looking at the history of autism, diagnosis, blaming mothers, stigma, the rise in numbers then fascinating reports on how different cultures deal with autism.
Best to read a text book also, as this is subjective, a little repetitious. You don't leant much at all about Isabel's world - much more about how a child with autism affects those around them and what societies think about them. Autism in the 21st Century gives a highly informative and easily approached explanation of the science, and more about autism from the person with autism's point of view.