The 5 Love Languages: The Secret to Love that Lasts, Edition 4

Relationship Goals: How to Win at Dating, Marriage, and Sex

Acrobatic Sex Positions: So Crazy We Dare You to Try Them

8 Rules of Love: How to Find It, Keep It, and Let It Go

Hold Me Tight: Your Guide to the Most Successful Approach to Building Loving Relationships

The Seven Principles For Making Marriage Work

The 5 Love Languages/The 5 Love Languages for Men Set

Sex Position Sequences: From Erotic Start to Spine-Tingling Stretch to Mind-Blowing Finish

The Meaning of Marriage: Facing the Complexities of Commitment with the Wisdom of God

Boundaries in Marriage: Understanding the Choices That Make or Break Loving Relationships

Atomic Attraction: The Psychology of Attraction

Marathon Sex: Incredible Lovemaking Experiences Hotter and Longer Than You've Ever Done It Before

The Value of Others: Understanding the Economic Model of Relationships to Get (and Keep) More of What You Want in the Sexual Marketplace

The Journal of Best Practices: A Memoir of Marriage, Asperger Syndrome, and One Man's Quest to Be a Better Husband

The Invisible Partners: How the Male and Female in Each of Us Affects Our Relationships

The 12 Minute Sex Solution: Have Electrifying Sex in New Ways with 75 Quick and Dirty Scenarios You Can Do in 12 Minutes or Less

The Wait: A Powerful Practice for Finding the Love of Your Life and the Life You Love

What Are the 5 Love Languages?: The Official Book Summary

The Act of Marriage: The Beauty of Sexual Love

Oral Sex That'll Blow Her Mind: An Illustrated Guide to Giving Her Amazing Orgasms