Approximately 10,000 people die by suicide in Germany each year. A large portion of these suicides is related to mental illnesses. The empathetic understanding of the inner world of a suicidal person, establishing contact, assessing the current suicide risk, evaluating the ability to distance oneself and communicate, as well as treating suicidal experiences and behaviors, are among the most challenging and simultaneously responsible tasks and challenges for professional helpers. This book offers a practical guide for therapeutic engagement with suicidal thoughts and attempts. The volume initially provides epidemiological, etiological, and diagnostic information to understand and recognize suicidal developments and crises. The focus of the book is on presenting strategies and methods for risk assessment.