The Wiley Approaches to Behaviour Pathology is a small, multi-author academic series published by Wiley that explores mental and behavioural disorders from a scientific and clinical perspective. Rather than focusing on treatment manuals, the series examines the theoretical foundations of psychopathology—covering topics such as depression, anxiety, schizophrenia, psychosomatic illness, and research methods in behavioural science. Each volume brings together leading psychiatrists and psychologists of the time to analyse how different disorders are defined, studied, and explained using biological, psychological, and social frameworks. Overall, the series reflects an early effort to systematise modern clinical psychology by integrating research-based approaches to understanding abnormal behaviour.