The Picture Exchange Communication System (PECS) is used to teach communication skills to those with limited functional speech. PECS promotes communication within a social context. Training in PECS begins by teaching a spontaneous request and goes on to teach additional communicative functions. An added attraction for preschool children with autism and related disabilities is the high proportion of children who acquire independent speech. Participants will learn how to implement the six phases of PECS; plus attributes; and to use PECS with individuals with autism; related developmental disabilities; and/or limited communication skills.