Seldom do a husband and wife have the same primary emotional love language.
Once you identify and learn to speak your spouse’s primary love language, I believe that you will have discovered the key to a long-lasting, loving marriage.
Also by Gary Chapman:
The Five Love Languages for Singles
The Five Love Languages of Children
The Five Love Languages of Teenagers
The Five Languages of Apology: How to Experience Healing in All Your Relationships
UPDATE: If you have read this book, please let me know in the comments how long you and your partner have been together. If you're not in a committed relationship at the moment, please let me know how (or if) this book changed your perspective.