This book provides a broad review of the psychopathology of psychiatric illness, beyond the limitations of the DSM and ICD criteria. Beginning with a discussion of the background to psychiatric classification, the authors explore the problems and limitations of current diagnostic systems. The following chapters then present the principles of psychiatric examination and diagnosis, described with accompanying patient vignettes and summary tables, and related to different diagnostic concerns. A thought-provoking conclusion proposes a restructuring of psychiatric classification based on the psychopathology literature and its validating data.