If you've read and re-read the work but still don't know where to begin, try Bloom's Literary Reference Online. It has a biographies, overviews, criticism and step-by-step advice on "How to Write a Good Essay."
After reading an overview, use these sources to look up any unfamiliar terms.
Overviews familiarize you with the characters, setting, literary elements, and genre of the work. Overviews can be helpful and informative, but they are not criticism.
NOTE: With few exceptions, overviews and reference books are tertiary sources and should not appear in your Works Cited.
After reading an overview, use these sources to learn about the historical context of a work.