Mention De Quincy's name and automatically people think of 'Confessions of an English Opium-Eater', whether they have read it or not. De Quincy wrote much more than that, and was one of the most brilliant writers of his generation, indeed arguably of any generation.
This collection includes his short literary criticism 'On the Knocking at the Gate in Macbeth', as well as his gothic short tale 'The Avenger', a story of mass murder in a small German town, which ultimately is a story of vengeance. Of course here also is 'On Murder as One of the Fine Arts', 'Second Paper on Murder Considered as One of the Fine Arts', and 'Postscript to On Murder Considered as One of the Fine Arts', as well three appendices, which are unfinished works.
The On Murder brought De Quincy instant notoriety due to its mixture of irony, satire and aesthetics. Taking the path that murder is an art form, and not mindless violence, De Quincy produced something that will make you laugh out loud, as well as provoke thought. Hugely influential on many people these essays have helped to shape the crime/ murder mystery genres. If you love a good read, then don't overlook this book.