Oh Crap Potty Training was a good book. It addresses lots of issues that might come up and how to deal with it. We talked a lot about why we go pee and poop in the potty. We also read the Elmo Potty Training book and Everybody Potties book. We put them next to the potty for her to read while pooping once she got to that point.
Thank you Kate and Sarah!
We liked the Elmo Potty Training book. But he really benefited from the Daniel Tiger potty episode.