What do I already know? That I can't always judge a book by its cover.
I didn't do too badly on the "guess the title" games -- better with the kids books than adults. There were a few covers that I recognized but just couldn't place, and a couple that I didn't know at all. The sub-genre cover game was more challenging. I learned there are a lot of sub-genres that I don't know about.
After looking at the options, I decided to look at Street Fiction. I've gotten quite a few requests for urban fiction and my knowledge is really limited. I also signed up for Early Word's newsletter. I think it will help me stay on top of what's forthcoming.