Civil Disobedience and Other Essays is a collection of Essays by the 19th century Transcendentalist Henry David Thorough. In his most famous essay, "Civil Disobedience," Thorough voices his opposition to particular injustices such as slavery and the Mexican-American war and asserts that the government is entirely corrupt. Thorough argues that rather than respecting the law and channeling one's opinions through legal processes like voting, individuals must be guided by their own conscience, refusing to even pay taxes to the government to fund immoral acts and going to prison if necessary.
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.