Forensic Mental Health: A Source Guide for Professionals is an innovative, yet practical new textbook that addresses the nexus of mental health and legal systems. Specifically, forensic mental health can be defined as the utilization of psychological strategies and techniques (e.g., diagnosis and treatment) to assist criminal justice-involved clients with mental health issues. These clients benefit from mental health care at all points in the criminal justice system, including prior to prosecution, during trial, and after adjudication. In these settings, mental health care can encompass everything from assessment and treatment services to casework management and collaboration with stakeholders. Such services are provided by a diverse group of professionals from different vocational and academic backgrounds (e.g., psychiatrists, psychologists, nurses, social workers, counselors, and others). The importance of forensic mental health services is highlighted by the fact that criminal justice-involved clients with mental health issues are disproportionately likely, relative to the general population, to be re-arrested, re-incarcerated, and victimized by others. Necessitated by the rapid development of the field, this practitioner-oriented textbook adopts a multidisciplinary perspective on several timely, prominent, and often overlooked issues in the field of forensic mental health. This textbook features 20 standalone chapters written by a diverse collection of authors drawn from a wide variety of disciplines. Topics covered include but are not limited to the role of mental illness in criminal behavior, special populations and neurobehavioral disorders, memory-related disturbances, competency to stand trial, and re-entry into the community. Although extensively referenced, each chapter is written in an engaging and easy-to-follow manner that is appropriate for undergraduate students, graduate students, and established professionals alike. As such, Forensic Mental Health: A Source Guide for Professionals serves as an incomparable tool for those learning about how to assist current or future clients. The value of Forensic Mental Health: A Source Guide for Professionals is based in its ability to serve a wide variety of roles for different people. First, the textbook can serve as a great introduction to forensic mental health for students considering a career in this field. This could include students from criminal justice, psychology, and human service programs. Second, the textbook has the potential to provide additional professional seasoning or training for professionals already working in the field, but who may be unfamiliar with some topics such as legal concepts (e.g., competency to stand trial). Third, the textbook can simply be an essential resource for experienced legal professionals, clinicians, or others who might need a refresher on a given topic. Fourth, this textbook could be valuable to professionals and organizations that are collaborating with forensic mental health professionals in an effort to serve criminal justice-involved clients. In light of this versatility, Forensic Mental Health: A Source Guide for Professionals is a valuable addition to any library.