Author Barb Rentenbach writes: "A designed beauty of synergy is that it serves only to add, never subtract. By definition, it means that the combined interaction of parts creates an effect greater than the sum of the parts. Individuals are the parts. I am an odd little part. I don't look normal. I appear to be quite messed up and a prime candidate for nothing but pity and patronization with a sprinkling of repulsion and fear. I am disguised as a poor thinker... I am designed to aid in making evident the implicit need for a group effort in order to yield maximum returns. Synergy is the byproduct of giving..."

"Many books by people with autism are written by individuals considered “high-functioning“ — people who are verbal and are invited to speak at conferences and who have made a name for themselves in the autism world. People such as Temple Grandin and Donna Williams come to mind.  But there are a sizeable number of people with autism who are much more severely affected... Barbara Rentenbach is a woman with more severe autism, an even smaller minority that isn’t recognized, and she uses FC to communicate.  Her book Synergy is about her life, but more importantly, it is about her attempts to navigate a society that is not designed to meet her particular challenges...One can just feel how overloaded and overwhelmed with sensory bombardment the author is; yet she writes so brilliantly; her writing is also very beautiful, but one must be able to appreciate how she writes, as it is very abstract... This book may be hard to read for some, but it’s a 'must have'!"

- Anne Carpentar, Autism National Committee