Her favorite subject matter is anything by Tedd Arnold, especially the Fly Guy books. They are fun, funny, gross and delightful. They're predictable, but not to "easy-readerish" if you know what I mean.
I don't know when it happened. Not long ago she was trying so hard to sound out some words in a picture book we were reading, and now she has no trouble with it. Then, she found a Fly Guy book on her own and read the whole thing, no problem. She owns a couple and I've gotten the rest from the library. There are still words she needs help with, but then there are still words I need help with in my reading too, so it's all good.
So thank you, Tedd Arnold, for Wilma and Parts and Fly Guy and all your wonderful boggly-eyed kids and creatures. While she's enjoying these, I want to kick back soon with your more "serious" book, Rat Life. It sounds great.