I've been married 15 years and I consider this book instrumental in helping my wife and I build and maintain our relationship.
The book explains that there are five love languages and that each one of us has a language that makes us feel loved. The problem is that we assume that the language that makes us feel loved is the same language that others feel loved.
For example, a husband with Acts of Service as his primary love language would fix things around house to show his wife he loved her. However, if the wife’s primary love language is Receiving Gifts, she’s wondering why he’s working on the house all time when all she wants from him is a little note or a flower or some small token that shows he loves her. She gives him little notes and he’s wondering she doesn’t appreciate all the work he does.
The Five Love Languages says that people feel loved in their language and not ours.