The material "Diagnostics and Communication Promotion," abbreviated as "DiaKomm," provides a comprehensive tool for assessing and promoting the communicative abilities of children, adolescents, and adults. The target group consists of individuals at early developmental stages who are impaired in their spoken language development and communication skills. A clear, colorful card set offers an easy-to-understand action guide, describes the materials used, as well as the data collection, evaluation, and documentation forms, thus guiding users step by step through the support diagnostics. Additionally, the set includes detailed recommendations for support measures that follow the diagnostic steps. The accompanying booklet clearly explains the fundamentals and background information on "DiaKomm." It thoroughly describes the process of support diagnostics and then provides an example.