What I have found as the lethal combo of books is....
1. Passionate Marriage by David Schnarch. I can't keep praising this enough because it really tackles the complexity of relationships, sexuality and their relationship to one another. PM is the first thing that actually worked in our sitch and will be the roadmap for the rest of our marriage. Man, if I could afford his Intensive Therapy, I would fly my W and myself there tomorrow.
2. Gottman's "Realtionship Cure" which is way more than marriage related. It's completely focused on how we communicate with one-another. While good communication might prevent divorce, it does nothing for "spicing" up the relationship though some (like my W) would say that a partner's communication skills can be a total turn off. It's also a great resource for communicating with your parents, co-workers, children, and friends. An excellent resource for a better understanding of yourself and others. The audio version is really nice.
3. The Sex Starved Marriage is worth reading because it pays for this site. It's very solution oriented but it appears that it works best when the LD spouse is "looking around the room for their libido" and want to get it back. Still buy it. But if you can only choose 1 to make your spouse read, then Passionate Marriage is probably a better choice. It gives you lots of things to talk about and will challenge both of you with some tough medicine.
Anywhere is walking distance if you have the time
-Steven Wright
