The Complete Psychological Works of Sigmund Freud, Volume 10 contains two of Freud's most famous clinical case studies: Analysis of a Phobia in a Five-Year-Old Boy ("Little Hans") and Notes Upon a Case of Obsessional Neurosis ("The Rat Man"). These works illustrate Freud's theories on childhood development, anxiety, phobias, and obsessive-compulsive symptoms.
The volume is considered a cornerstone of psychoanalytic literature because it demonstrates Freud's clinical method in practice and provides detailed insight into the origins and treatment of neurotic disorders.