 Heinz and Rowena Ansbacher both worked directly with Alfred Adler as scholars and editors and are considered among the leading early followers of Classical Adlerian psychology.Their major contribution, "The Individual Psychology of Alfred Adler" (1956), is still the definitive text on individual psychology and is still in print.They also authored "Superiority and Social Interest" (1964) and "Cooperation Between the Sexes" (1978).