Unlike other books that simply look at one or two aspects of clinical practice or therapeutic treatment, this casebook looks at the entire experience of treating psychologically ill clients. This impressive collection of valuable clinical knowledge offers the professional a detailed account of how to administer treatment as well as the rationale for choosing such treatment. The book is divided into two separate sections, one on working with adults and one on working with children and adolescents. Each section begins with an effective overview chapter that describes a model of case conceptualization that uses interview, observation, contextual information, and assessment instruments to develop a working scientific hypothesis and a treatment plan. This framework is then applied in subsequent chapters to a wide variety of psychological disorders, such as anxiety disorders, depression, eating disorders, and substance abuse. However, the application of behavioral and cognitive-behavioral therapies to persons who suffer from the most severe forms of mental illness—bipolar disorder, schizophrenia, and other psychotic disorders—is, regrettably, beyond the scope of this text.