For Young Women Only: What You Need to Know About How Guys Think

For Young Men Only: A Guy's Guide to the Alien Gender

For Parents Only: Getting Inside the Head of Your Kid

For Women Only, Revised and Updated Edition: What You Need to Know About the Inner Lives of Men

For Men Only, Revised and Updated Edition: A Straightforward Guide to the Inner Lives of Women

For Young Women Only Discussion Journal

For Couples Only: Eyeopening Insights about How the Opposite Sex Thinks

The Surprising Secrets of Highly Happy Marriages: The Little Things That Make a Big Difference

Through a Man's Eyes: Helping Women Understand the Visual Nature of Men

Christian Morality (student book): Our Response to God's Love

The Kindness Challenge: Thirty Days to Improve Any Relationship