Adjustment disorders are among the most commonly diagnosed conditions in both outpatient and inpatient care. They primarily manifest as depressive and anxiety symptoms. The diagnostic differentiation from depression and anxiety disorders is correspondingly challenging. This volume provides a current description of the disorder, explains important models for its development, and informs about diagnostic and therapeutic approaches. It addresses distinctions from normal stress processing as well as other disorder types. The book describes a practice-oriented psychotherapeutic approach that particularly emphasizes cognitive strategies. Necessary overlaps and distinctions in the approach to depressive disorders and anxiety disorders are highlighted, while also presenting complementary therapeutic strategies.