Flora Rheta Schreiber was an American author and journalist, best known for her work in the field of psychology. Born on March 24, 1918, she gained prominence for her book, Sybil, which tells the story of a woman with dissociative identity disorder. The book was published in 1973 and became a bestseller, bringing attention to the complexities of mental health. In addition to her writing, Schreiber worked as a journalist and contributed to various publications. She was also involved in the field of mental health advocacy, helping to raise awareness about psychological issues and the importance of treatment. Schreiber passed away on April 24, 1988.