AAC Body of Knowledge is one of the project results. It is available in Croatian only and contains basic information needed for effective development and implementation of ICT-based AAC systems. It is formed as a repository of definitions and references to existing sources of information related to AAC from the following research fields: computer science, speech pathology, education and rehabilitation, psychology and graphic technology. The authors' intention is to establish a reference point for introducing a reader in the domain of AAC and to provide quality and fast access to certain AAC aspects. The document will be continuously updated with new research findings.