Diagnosis and consultation are often presented and discussed separately. However, in supported communication, they are inextricably linked: diagnosis occurs in consultation situations just as consultation occasions arise from diagnosis. The opportunities that result from the practiced unity of diagnosis and consultation are central themes of this book. A synthesis of theoretical concepts, research findings, and practical reflections provides both scientific insights and guidance for diagnostic and support practice. The authors introduce a new diagnostic toolkit aimed at intervention planning. The UK-Diagnosis resource is explained in a detailed manual, and its application is illustrated with examples. All materials are available as templates for practical use. The close connection between diagnosis, consultation, and intervention is explored in depth through practical examples.