Yeah, you'd have to search those categories. It might not be worth it for you, especially if you have a decent selection of ebooks at your library. The first year I had my Kindle, I barely bought any books, just used the library all the time.
Oh, AND for people who try to read scriptures everyday, you can just keep your Bible on there.
I use the Kindle dictionary function All. The. Time. I used to read traditional books and keep my iPod Touch on the table next to me to access the dictionary. The Kindle makes that part much nicer.
I swear, I'm receiving no compensation from Amazon.