Book excerpt: This issue of Critical Care Clinics focuses on Psychiatric Aspects of Critical Care Medicine. Editor Jose Maldonado has assembled an expert team of authors on topics such as: Psychiatric Aspects of Organ Transplantation in Critical Care; Medical Complications of Psychiatric Treatment; Psychiatric and Palliative Care in the ICU; Psychiatric Aspects of Heart and Lung Disease in Critical Care; Alcohol Withdrawal Syndromes: Assessment and Management; Substance Abuse and Withdrawal in the Critical Care Setting; Mood Disorders and The Outcome of Suicidal Thoughts and Attempts; Anxiety Disorders and the Outcomes of Trauma; Assessment and Management of Toxidromes in the Critical Care Unit; Neuropsychiatric Consequences of Trauma and Head Injury; Detection and Management of Pre-Existing Cognitive Impairment in the Critical Care Unit; Delirium: Pathophysiology, Diagnosis and Treatment; Neuropsychiatric Aspects of Infectious Processes.