- Understanding Your Wife: What Women Need in Marriage But Rarely Feel Safe to Say (Understanding Your Spouse)
- Understanding Your Husband: What Men Need in Marriage (But Rarely Say) (Understanding Your Spouse)
- Understanding Your Wife: What Women Need in Marriage (But Rarely Feel Safe to Say) (Understanding Your Spouse)
- Understanding His World: A Parent's Guide to Raising Emotionally Strong, Connected Sons (Understanding Your Children)
- Understanding Her World: A Parent's Guide to Raising Confident, Connected Daughters (Understanding Your Children)







