Volume 1: "There is much more to understanding psychopathology than a mere description of symptoms can provide. This book provides a comprehensive overview of different aspects of psychopathology in adult populations. It addresses the issues in understanding adult psychopathology. To study psychopathology, or to treat those who suffer from it, some form of nomenclature is needed. The book clarifies the issues and principles of diagnostic classification. It highlights the issues emerging with the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders classification system and its value in research and clinical practice. An important field in the understanding of psychopathology is psychological assessment. The book focuses on assessment strategies and methodologies for obtaining relevant information for evaluation of individuals with mental health problems. It provides an overview of strategies and methods for assessing psychopathology through personality assessment instruments. It also provides a substantial overview of the major and most widely used assessment techniques for understanding psychopathology. The book illustrates the value of the Minnesota Multiphasic Personality Inventory in providing a perspective on mental health symptoms. It then presents the clinical manifestations and descriptions of mental disorders followed by the treatment considerations and important ethical, legal, and administrative issues. The book provides an overview of how providing psychometric test feedback to a client and incorporating information about the client's psychological assessment can be a key variable in the treatment process. It underscores the importance of the development of a professional ethical identity for all mental health professionals and trainees."--Preface. (PsycINFO Database Record (c) 2018 APA).