Joanne Greenberg (born 1932 in Brooklyn, New York) is an American author most well known for the bestselling novel, I Never Promised You a Rose Garden written under the pen name of Hannah Green. It was adapted into a 1977 movie and a 2004 play of the same name. She received the Harry and Ethel Daroff Memorial Fiction Award as well as the Jewish Book Council of America award in 1963 for her novel The King's Persons, which was about the massacre of the Jewish population of York at York Castle in 1190. She is a professor of creative writing at the Colorado School of Mines.

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