The Book of Esther is a book in the Hebrew Bible and the Christian Old Testament. It tells the story of a Jewish woman named Esther who becomes the queen of Persia. The narrative highlights her bravery as she risks her life to save her people from a plot by the royal advisor, Haman, who seeks to destroy the Jews. The book emphasizes themes of courage, identity, and divine providence. It is celebrated during the Jewish festival of Purim, which commemorates the events of Esther's story. The Book of Esther is unique for not mentioning God directly, yet it illustrates the importance of faith and community.