I also recommend "How to Improve Your Marriage Without Talking About it" ... really does a good job of explaining the Fear/Shame dynamic.
Mars/Venus is a bit outdated but still contains a lot of helpful info. I actually made myself a cheat sheet in a word perfect doc to help me remember the 3 things that men and women need to feel loved.
"The 5 love languages" changed my life.
Relationship Rescue by Phil McGraw is also pretty good.
Love and Respect Codependant No More Journey from Abandonment to Healing
One of the early ones I read was "This is not the story you think it is" by Laura Munson after I found her article in the Times called "Those Aren't Fighting words Dear".
For gratitude and fun ...
The Book of Awesome The Secret
Other stuff ...
It's all too much by Peter Walsh - it's about clutter, all kinds.
Hmmmm ... my brain is tired ... I'm sure I'll think of more ...
Holding onto anger to punish someone else, is like lighting yourself on fire to get smoke in their eyes ~ 25yearsmlc