This document discusses autism spectrum disorder (ASD) and Asperger's syndrome. It begins by defining ASD as a set of neurodevelopmental disorders characterized by difficulties with social interaction and repetitive behaviors. It then discusses the relationship between Asperger's syndrome and autism, noting they are both on the autism spectrum but Asperger's involves higher functioning. The document explores some key symptoms of Asperger's such as problems with social skills, communication, and restricted, repetitive interests.