Re: The proper care and feeding of your husband.
I think with any book of the like, you take what you know will be helpful to your relationship. Not all things from the book seem to be great. I read the negative reviews on amazon and some complaints I could agree with but others I know DH and I have conversated about and were spot on to his feelings.
I liked the Five love languages. We took the quiz and studied based on our love languages.
Another book I liked was For Women Only by shaunti and Jeff felhahn. It was easy to read and not as long which I liked because I can't find a lot of reading time. I also got For men only for DH.