Why Marriages Succeed or Fail: And How You Can Make Yours Last Contains keys to successful behaviors in marriage
The 5 Love Needs of Men and Women Here is the key to understanding what your spouse needs
Love Talk: Speak Each Other's Language Like You Never Have Before Best resource I've ever used to understand my emotional needs
The Conscious Bride: Women Unveil Their True Feelings About Getting Hitched (Women Talk About) Helpful resource for describing the emotional tasks important to getting married.
Getting the Love You Want: A Guide for Couples, 20th Anniversary Edition Classic book on finding the love of your life!