Hannah Green was the pen name of Joanne Greenberg, an American author best known for her groundbreaking novel "I Never Promised You a Rose Garden" (1964), a semi-autobiographical account of her struggle with schizophrenia and subsequent recovery through psychotherapy. Written under the pseudonym to protect her privacy, the novel became an international bestseller and transformed public understanding of mental illness. Green's candid portrayal of psychiatric treatment challenged prevailing stigmas and offered hope to countless readers. Her other works include "The King's Persons" and "In This Sign." Green's unflinching honesty and literary skill established her as a pioneering voice in mental health literature.