The Stories of Edgar Allan Poe are a macabre collection of tales involving murder, guilt, madness, and revenge. The most famous of these stories involve a man who tricks a supposed friend into a long, slow death; a prisoner being tortured by a slowly descending blade; a premature burial; and a guilty murderer who is convinced that he can hear his victim's heart still beating under the floorboards. Themes explored in these stories include sanity, madness, man's conscience, and the inevitability of death.
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.