Most of us have a very vague and narrow concept of what autism is, based mainly on such stereotypes as Dustin Hoffman's character in the film Rain Man. In this unit you will discover that there is a wide spectrum of disorders associated with autism, and an equally wide range of approaches to diagnosis and treatment. This study unit is just one of many that can be found on LearningSpace, part of OpenLearn, a collection of open educational resources from The Open University. Published in ePub 2.0.1 format, some feature such as audio, video and linked PDF are not supported by all ePub readers.