What Christian parenting books do you recommend?

I've always liked the To Train Up A Child series by Debi Pearl. I've seen the method used by several parents over the years and it's amazing in its results. Wonderful and happy children, all of them living for the Lord.

I've also heard good things about James Dobson's work as well but haven't read any of him myself or seen the results. American Family Association sells many of his works at a decent price, though. Haven't checked Amazon yet however.