Celebrity parents are just like us. They endure pregnancy pains, change dirty diapers, divvy up carpool duties, and more. Of course, once they've made it through the first year, they tend to turn their experiences into million-dollar book deals. From a funny opinion on epidural use to Pd.D.-supported parenting theories, these mothers (and one father) have a lot to say on a topic we all care about. Check out the celebrities who want to teach you how to raise your children.