Leopold Bellak

Leopold Bellak (1916–2000) was a psychologist, psychoanalyst, and psychiatrist who pioneered the Children's Apperception Test (CAT) in collaboration with Sonya S. (Sorel) Bellak. He also collaborated on the Thematic Apperception Test (TAT), on clinical psychological assessments, and pioneered the understanding of ADHD (Attention Deficit Hyperactivity Disorder) as being a genetic disorder. Dr. Bellak created the 67-year-old publishing house, CPS Publishing LLC.

Bellak was born in Lima, Perú and as a refugee moved to the United States in 1939.