The Diagnostic Manual – Intellectual Disability: A Clinical Guide for Diagnosis of Mental Disorders in Persons with Intellectual Disability (2nd ed.; DM-ID-2) offers clinicians who work with individuals with ID a convenient, easy-to-use reference for applying DSM-5 diagnostic criteria to their clients. The DM-ID-2 Clinical Guide was developed to facilitate an accurate psychiatric diagnosis in persons who have intellectual disabilities and to provide a thorough discussion of the issues involved in reaching an accurate diagnosis. The DM-ID-2 Clinical Guide provides state-of-the-art information concerning mental disorders in persons with intellectual disabilities. Grounded in evidence based methods and supported by the expert-consensus model, DM-ID-2 Clinical Guide offers a broad examination of the issues involved in applying diagnostic criteria for psychiatric disorders to persons with intellectual disabilities.