One of the most basic human rights is to communicate one’s needs and wants. It is the responsibility of educators to provide learners with a system with which they can communicate. For children with ASD, teaching communication is critical because gains in communication and language skills are predictors for student outcomes (Gillberg, 1991; Lord & Paul, 1997; Szatmari et al., 2003) and are necessary for learning. This chapter provides an overview of the communication and language impairments and excesses seen in ASD, introduces assessments that drive communication interventions, presents evidence-based practices in teaching communication skills to children with ASD, and discusses the use of technology as a promising practice.