Should be essential reading for everyone, Autistic or Allistic, though I feel it is particularly valuable for people on the spectrum see all there is to appreciate about how they interact with the world. 

I gave it 4.5 stars rather than 5 because Unmasking Autism takes a very activist based approach to discussing Autism. While this is valuable I feel it leaves the potential to alienate Allistic readers or anyone who is conservative leaning politically. For instance, I would love to recommend this book to my family but I know it's political bend would turn them off such that they would be be unreceptive to the knowledge this book has to share.