Babies are very particular readers. In our experience, there are 3 things that hold their interest for a long time: 1. Photographs, or realistic art. 2. Rhyming or songs! 3. Moving Parts, or flaps!
Here are many the books that the babies in our lives have loved; all of them have at least 1 of the 3 things, some of them have all of the 3 things!