Best book on parenting, hands down.  Not a rulebook or guideline on how to get little Johnny to start obeying.  The gospel drips from every page.  Drives the parent to the cross, who then reflects the cross to children.  Couldn't recommend highly enough!

Title says it all.  Sovereign grace people.  Solid & gloriously grace-centered.

Classic.  Gets to the "heart" of the issue.  Reformed, so he doesn't mess around with discipline.  Extremely practical.  Every parent should have this book as well. 

For older children.  Tripp is 'the' guy.

Great little book. Geared especially towards busy moms, though I have loved it as well. Constantly reminded us as parents that life is messy. Rachel is real, and has great, laugh-out-loud humor pervading the book. My wife highly recommends this book (as do I).