- _What Are the Five Love Languages?_ (New York, NY: Random House, 2019)
- co-author with Gary Chapman and Jennifer Thomas
- _The Five Languages of Appreciation in the Workplace_ (New York, NY: Northfield Publishing, 2018) Co-Author with Paul White and Gary Chapman
- _Making Love Last Forever: The Five Love Languages in Practice_ (Chicago, IL: Northfield Publishing, 2017) co-author with Gary Chapman.
- _Things I Wish I’d Known Before We Got Married_ (Dallas, TX: Word Publishing, 2010) co-author with Gary Chapman.
- _When Sorry Isn’t Enough: Making Things Right with Those You Love_ (Chicago, IL: Northfield Publishing, 2009) co-author with Gary Chapman
- _A Guide to Forgiveness (LifeGuide Bible Studies)_ (Downers Grove, IL: InterVarsity Press, 2005)
Magazine Article
-_What Are the Languages of Appreciation at Work?_ _(Talent Economy) Sept issue