Soon to be a major motion picture you probably shouldn’t see, David Mitchell’s 2004 novel “Cloud Atlas” is in our sights. This novel consists of six separate stories set in different genres and timeframes from the 1850s to a post-apocalyptic future, and yet they’re all interlinked. Somehow. It’s fun, weird, and challenging, but what does it all mean? Read it now before every character in it becomes Tom Hanks and Halle Berry.