This is an amazing and comprehensive overview of the DCU, useful to comic book fans as well as gamers, and includes hundreds of cool write ups. It is also home to possibly the most hilarious typo I've ever seen in a gaming book. In the Green Lantern entry, it describes a rivalry between Hal Jordan and Guy Gardner over the affections of a lover: Karl. Don't worry, Hal ends up with Karl.
That just made me smile.
[5 of 5 Stars!]