AAC Devices - USSAAC

People with severe speech or language problems use various AAC methods to supplement existing speech or replace speech that is not functional. Special augmentative aids, such as picture and symbol communication boards and electronic devices, are available to help people express themselves. This may increase social interaction, school performance, and feelings of self-worth. This article by USSAAC, a chapter of the International Society for Augmentative and Alternative Communication (ISAAC), describes low- to high-tech AAC methods of intervention. 

Link: https://ussaac.org/aac-info/aac-devices/