emotional, cognitive, behavioral, and somatic processes interact in maintaining maladaptive states and how this approach identifies the points at which therapeutic interventions can be applied to achieve maximum leverage. This is followed by guidance on implementing the approach in practice, including addressing diagnostic issues, to create an individual process-based model network for selecting the right evidence-based interventions. The process-based approach forms a connecting foundation that combines classical CBT with third-wave approaches (acceptance commitment therapy, schema therapy) and integrates helpful recent developments in psychotherapy research, such as evolutionary theories. Practitioners will find the downloadable tools in the appendix invaluable for their clinical practice. This book is of interest to clinical psychologists, psychiatrists, psychotherapists, mental health practitioners, students, and trainees.