An Unfinished Woman (Winner of the 1969 National Book Award for biography/Autobiography), is the first in her autobiographical trilogy (the two others being Pentimento: A Book of Portraits and Scoundrel Time).
From Library Journal
Hellman didn't pull any punches in this 1969 autobiography in which she reminisces about her unhappy upbringing in New Orleans and her literary relationships, especially that most famous one with master whodunit writer Dashiell Hammett. Though many critics and biographers claim that Hellman invented half of her life stories, these tales do make for interesting reading, so who cares.
An amazing book by an amazing woman. Don't miss it.