Well I read Mars/Venus... which of course was good. Then I read Mars/Venus on a Date... which for those of us just starting out and having to relearn relationship things, I found excellent. Explained a great deal to me about men and this whole uncertainty phase that they go through and what role a woman plays in that... but that's neither here nor there for you... for me it explains a great deal.
Men, Women and Relationships by JG actually goes into the inner workings of the individuals. Deals with how the genders think, relate, and communicate.
There was an interesting comparison to a man who carries a wallet (basic necessities) and a woman who carries a purse (with everything in it). At first I was like WTF... and then started to think about it... it was true... women are prepared for everything that comes their way, we have to be. Just interesting reading, even how men can shut down and how women relate to stress. And no, I won't loan you my copy... still reading!!