Both are excellent books and I think the 5 love languages and it's sister book 5 languages of apology should be required reading for every married couple.
The 7 principles is another excellent book. I never read it completely. Sadly my wife and I got about 1/3 of the way through it and both felt like it wasn't helping. We should have stuck to it because the first 1/3 was about your relationship together really has friends and how well we knew each other. We did well in that section and I know I got a false sense of security out of it. Less than 6 months later she bombed me.
If we really want to love, we must learn how to forgive. - Mother Theresa
