The title comes from the name of its heroine, Esther—that's pretty clear. Yet, it's also significant. Mordecai gets as much stage time as Esther, but the book isn't named "Mordecai"—even though the moment where he doesn't get executed and Haman does is the big climax and focal point of the story. But Esther is the savior, she's the one (as the title reminds us) who gets it done.