This book is a treasure chest of information. I praise God for Paul trip on this book. It has helped me in my marriage tremendously. It has helped me to see me and allowed me to surrender myself to God in a way that I never knew I needed to before. I have been divorced once. And this showed me that selfishness is the DNA of sin. And that's what kills marriages.
And not being willing to admit that you're wrong. And you need help from God to change it.