This third volume of Jung's Collected Works contains his renowned monograph "On the Psychology of Dementia Praecox" (1907), described by A. A. Brill as indispensable for every student of psychiatry--"the work which firmly established Jung as a pioneer and scientific contributor to psychiatry." Also included are nine other papers in psychiatry, the earliest being "The Content of the Psychoses," written in 1908, and the latest being two papers, written in 1956 and 1958, which embody Jung's conclusions after many years of experience in the psychotherapy of schizophrenia.

The importance of this volume of scientific papers for understanding Jung's researchers as a whole can scarcely be overrated, even though most of them are now mainly of historical interest or represent the reflections of his later years on a subject that never ceased to engage his active psychotherapeutic endeavors.

"The whole of the book reflects the development of Jung's thinking through the years on the nature of mental illness. It seems that room should now be made on the psychiatrist's shelf right next to the important volumes by Bleuler and Arieti."