Currently reading The Mallet of Loving Correction, a collection of John Scalzi's blog posts on Whatever. I wouldn't want to read it all in one sitting, but it's perfect for when I'm waiting for the children to emerge from their respective schools.
And also the Rising Stars Compendium Vol. 1, a huge collection of J. Michael Straczynski's comic about 113 people with superpowers, all from the same small town. The story is okay, but the artwork isn't very good.