The authoritative text on augmentative and alternative communication, this classic bestseller is now in its fifth edition-revised and updated for a new generation of SLPs, teachers, occupational therapists, and other professionals in clinical and educational settings. Partnering with a team of distinguished contributors, renowned experts David Beukelman and Janice Light deliver today's most comprehensive, up-to-date introduction to AAC interventions and technologies for children and adults with complex communication needs. Future service providers will get in-depth coverage of essential AAC topics, enhanced by helpful study questions, valuable perspectives from people who use AAC, and case examples that illustrate key principles. Significantly expanded with new chapters on critical topics, more practical information on how AAC systems work, and new online companion materials, this definitive text will expertly prepare readers to support communicative competence-and quality of life-for children and adults with complex communication needs. WHAT'S NEW Professionals will prepare for their work in the field with critical new information on: Collaborating with family members and other communication partners Making the most of mobile technologies and AAC apps Selecting an AAC system and tailoring it to individual needs Working effectively with families from diverse cultural backgrounds Supporting inclusion across the lifespan (including education, employment, and community life) Ensuring efficient patient-provider communication in medical settings Providing communication supports to people with autism spectrum disorder PLUS: Enhance your teaching with a package of online companion materials, including a resource guide to help practitioners and students learn more about AAC; sample responses to chapter study questions; and a sample syllabus.