* Literary Merit - She rates the books out of four stars. It's not clear how she grades this and comes up with her stars and I disagreed on a lot of her decisions. She gave some really awesome books, like Hitchhiker's Guide to the Galaxy two stars, while The Time Traveler's Wife got four stars. Wtf?
* Easy Reading
* Page Turner
* Bathroom Book
* Family Friendly
So that plus the plot summary she gives for each book makes it really helpful for you to figure out whether or not you'd be interested in reading a particular book. And if you're looking for a specific book to find out what kind of mood it might put you in, there's a handy index in the back.