Panagiotis Oulis has been involved with psychopathology for many years, both from the perspective of the clinician and from the viewpoints of the researcher and theorist of methodology and theory of science. Consequently, this book combines all these aspects.

The author, relying on the long-standing experience he has gained with medical students and psychiatry trainees, defines and describes the "body" of Clinical Psychopathology in the various domains of mental functions.

For the sake of connecting with the interpretative theories of psychopathology, he often critically cites the various theoretical explanations, as well as the research findings that explain psychopathological phenomena.