There are several books that my husband and I both reference often: (click on books to see synopsis or to order through Amazon)

Freedom from Addiction: Breaking the Bondage of Addiction and Finding Freedom in Christ

Codependent No More: How to Stop Controlling Others and Start Caring for Yourself

Beyond Boundaries: Learning to Trust Again in Relationships

Christian Families in Recovery: A guide for addiction, recovery & intervention using God’s tools of redemption