- The 4-Hour Body
- Come As You Are
- How to Talk to Anyone: 92 Little Tricks for Big Success in Relationships
- Love More, Fight Less: Communication Skills Every Couple Needs: A Relationship Workbook for Couples
- The 5 Love Languages: The Secret to Love that Lasts
- The Mastery of Love: A Practical Guide to the Art of Relationship: A Toltec Wisdom Book
- The Seven Principles for Making Marriage Work: A Practical Guide from the Country’s Foremost Relationship Expert
- The Soulmate Secret
- The Brain in Love: 12 Lessons to Enhance Your Love Life