I posted this in the Book Club forum, but I want to post it here so more people can see it.
I volunteer at a used book store and I grabbed some books that I know can be helpful here on SI.
If you would like any of the books listed below, send me a PM and I am happy to snail mail it at no cost to you.
After the Affair
The Five Love Languages
His Needs Her Needs x 2
DDay Nov. 2011
Guns don't kill people; Affairs kill people