King Leopold's Ghost is an historical lens through which the desolation caused by the Belgian King in the Congo is examined. Leopold's land grabs, his military regime, and his programs of forced labor contributed to what became known as a genocide of the native Congolese. The text examines how Leopold accrued huge personal wealth through ivory poaching and rubber sap extraction, processes that beggared and what the King called the "Congo Free State."
Boasting the largest collection of book summaries, BookRags is the best option for titles you can't find elsewhere. They offer all of the basics (quotes, chapter summary, characters, historical context, literary criticism) but also walk through a few major topics that recur throughout the book, which can be particularly useful for essay writing.
Their book summaries aren't as good as other providers, but PinkMonkey often has interesting insights that aren't mentioned elsewhere on the Internet. For example, they go over literary elements (like setting, conflict, and mood), compare and contrast, and symbolism/motifs. It's a good site if you want to find a unique fact or angle that other students don't know about.