Dr. Kevin Leman is the author of this book.  He also wrote How to Make Your Children Mind Without Losing Yours.

This is a straight forward approach to parenting.  Here are a few of the important principles from the book:

Kids do what they do because they have gotten away with it.

Remember what you child thinks of you about in the moment is not necessarily what they will think about you for life.

The goal of every parent is to raise independent thinkers who have respect for others and for themselves.

Dr. Leman does a great job helping parents determine thier parenting style: permissive, authoritarian, or authoritative.  He gives practical steps for moving to a healthy authoritative style.

This is not one of my favorite parenting books but the testimonies included in the book testify to the effectiveness of this approach.  I would have to say that we have been able to apply much of what we learned.