David Foster Wallace's latest novel was just released posthumously. "The Pale King" was released on April 15—tax day appropriately—since Wallace's novel deals with the IRS. The author was known for his take on seemingly boring topics and his bountiful footnotes. But after his suicide, there were questions about the publishing of his final novel.
http://www.nytimes.com/2011/04/09/books/david-foster-wallace-and-the-pale-king.html