Esther is about God's sovereignty. God works so that a young Jewish woman becomes the queen of King Ahasuerus or Xerxes I. She becomes the queen five years before she is needed. The book describes a mortal conflict between Haman, the enemy of the Jews, and a jew called Mordecai. Esther saves the life of Mordecai and her Jewish people. You may be interested in visiting the Esther Q&A archive.
Queen Vashti Disobeys The King
Esther 1:1-22
Esther Becomes Queen
Esther 2:1-23
Haman’s Plot Against The Jews
Esther 3:1-4:17
God v.s. Haman
Esther 5:1-6:14
Esther Is Victorious
Esther 6:1-7:17
Celebration of Purim
Esther 9:1 - 10:3