Anna Freud

Anna Freud systematized and catalogued the concept of ego defense mechanisms in her 1936 book The Ego and the Mechanisms of Defence. She expanded on her father Sigmund Freud's earlier ideas, describing specific mechanisms such as projection, repression, reaction formation, and sublimation in detailed clinical terms.

Anna Freud and Melanie Klein developed competing schools of child analysis in the 1920s and 1930s. Anna Freud emphasized the child's relationship with the analyst as an educational and therapeutic alliance, while Klein interpreted children's play as symbolic expressions of unconscious fantasy and analyzed them more directly.

Anna Freud fled Vienna with her father Sigmund Freud in 1938 after the Nazi annexation of Austria and settled in London. There she established the Hampstead Child Therapy Course and Clinic, which became a leading international center for child psychoanalysis and is now the Anna Freud National Centre for Children and Families.

Yes. After her father's death in 1939, Anna Freud became one of the most prominent defenders and developers of classical psychoanalytic theory, particularly in the area of ego psychology. She remained a central figure in the psychoanalytic movement until her death in 1982.