Here are some valuable resources that we recommend.

A Celebration of Sex: A Guide to Enjoying God's Gift of Sexual Intimacy

By: Dr. Douglas E. Rosenau

A Lasting Promise

By: Scott Stanley

Cherish: The One Word That Changes Everything for Your Marriage

By: Gary Thomas

For Men Only: A Straightforward Guide to the Inner Lives of Women

By: Shaunti Feldhahn, Jeff Feldhahn

For Women Only: What You Need to Know About the Inner Lives of Men

By: Shaunti Feldhahn

Fun Loving You

By: Ted Cunningham

Humility: The Journey Toward Holiness

By: Andrew Murray

Intimacy Ignited

By: Joseph Dillow, Linda Dillow, Peter Pintus

Intimate Issues: Conversations Woman-to-Woman

By: Linda Dillow

Passion Pursuit: What Kind of Love Are You Making?

By: Linda Dillow, Dr. Juli Slattery

Sacred Marriage

By: Gary Thomas

Sheet Music: Uncovering the Secrets of Sexual Intimacy in Marriage

By: Dr. Kevin Leman

The Five Love Languages

By: Gary Chapman

The Meaning of Marriage

By: Timothy and Kathy Keller

The Mingling of Souls

By: Matt Chandler

This Momentary Marriage

By: John Piper

Unfaithful: Hope and Healing After Infidelity

By: Gary + Mona Shriver

You and Me Forever

By: Francis & Lisa Chan

Devotions for a Sacred Marriage: A Year of Weekly Devotions for Couples

By: Gary Thomas

Happily Ever After: Finding Grace in the Messes of Marriage

By: Desiring God (various authors including Francis Chan and John Piper)

Two As One, Wife in Pursuit, Husband in Pursuit

By: Ryan and Selena Frederick

The Smart Stepfamily

By: Ron Deal + Gary Chapman

For Better or For Kids: A Vow to Love Your Spouse with Kids in the House

By: Patrick and Ruth Schwenk

The New Dad’s Playbook

By: Benjamin Watson

Desiring God

Often features blog posts on marriage, intimacy, pornography, dating, and much more relationship-centric. They also have a great topical index.

Fierce Marriage

They’re working on a book right now, so their post frequency is down, but everything they post is worth reading.

Thriving Marriages

Sends out a daily email with posts on marriage, intimacy, communication, and much more. They curate content from other sites and distribute a variety of posts.

Gary Thomas

Consistently creates excellent content in both books and articles.

Scott Kedersha

Practical, biblical, and authentic encouragement to follow Christ and grow relationships.

The Married People Podcast

This podcast from Ted Lowe seeks to help make marriage real, fun, and simple.

Fierce Marriage Podcast

Solid content is each new episode, on topics such as money, sex, in-laws, and communication.