The 5 Love Languages: The Secret to Love that Lasts

Attached: The New Science of Adult Attachment and How It Can Help You Find--and Keep--Love

The Seven Principles for Making Marriage Work: A Practical Guide from the Country's Foremost Relationship Expert

Love Life: How to Raise Your Standards, Find Your Person, and Live Happily (No Matter What)

I Wrote a Book About You — A fun, fill-in-the-blank book.

Fight Right: How Successful Couples Turn Conflict Into Connection

The Way of the Superior Man: A Spiritual Guide to Mastering the Challenges of Women, Work, and Sexual Desire (20th Anniversary Edition)

Why Men Love Bitches: From Doormat to Dreamgirl―A Woman's Guide to Holding Her Own in a Relationship

All About Love: New Visions

Everything I Know About Love: A Memoir