The document provides an overview of autism and the Picture Exchange Communication System (PECS) as a form of augmentative and alternative communication for autistic children. Autism is characterized by impaired social interaction and communication difficulties. PECS uses pictures to teach communication in 6 phases, from exchanging pictures to develop speech to answering questions. Research has shown PECS can help some children develop speech and allows many untrained people to communicate with a child using PECS. Nurses should prepare for visits and use strategies like PECS and pictures of familiar items to help autistic children communicate.