The Fate of Rome: Climate, Disease, and the End of an Empire

The Power of a Praying Parent Book of Prayers

Plagues Upon the Earth: Disease and the Course of Human History

Slavery in the Late Roman World, AD 275–425

The Act of Marriage: The Beauty of Sexual Love

The Power of a Praying Wife Book of Prayers

The Power of Praying for Your Adult Children Book of Prayers

The Power of a Praying Husband Book of Prayers

Rethinking Sexuality: God's Design and Why It Matters

The Complete Illustrated Kama Sutra

A Woman After God's Own Heart Growth and Study Guide

The Power of a Praying Woman Book of Prayers

Loveology: God. Love. Marriage. Sex. And the Never-Ending Story of Male and Female.

Unwanted: How Sexual Brokenness Reveals Our Way to Healing

Clean: A Proven Plan for Men Committed to Sexual Integrity

Just Love: A Framework for Christian Sexual Ethics

Four Things Women Want from a Man

Single, Gay, Christian: A Personal Journey of Faith and Sexual Identity

A War of Loves: The Unexpected Story of a Gay Activist Discovering Jesus