This document provides an introduction to autism spectrum disorder through a presentation. It defines autism as being characterized by abnormalities in social development, communication, and restricted or repetitive behaviors. It discusses how those with autism often have withdrawn social interaction, avoiding eye contact and lacking empathy. It also covers neuropsychological testing used to diagnose autism and the three levels of autism spectrum disorder. The presentation emphasizes the importance of monitoring child development and not accepting a "wait and see" approach if concerns about autism arise.