The Proper Care and Feeding of Husbands is a must read for wives. I've read it before, probably right before I was married, but I'd forgotten how good it is. Dr. Laura Schlessinger takes a no-holds-barred look at what being a committed wife really means, and basically it boils down to "your marriage is what you make it."
A driving point throughout the book is that men are simple creatures with simple needs that any woman, regardless of looks, is capable of meeting. The problem is that most of the time, we women don't really want to meet those needs. We prefer to focus on whether our own needs are being met, and dish out "punishments" when they aren't. This is not the recipe for a happy (or healthy) marriage.
Although this is not a Christian book, I was amazed to find how much practical Biblical application is in the pages. I mentioned this to my husband, and he commented that truth is truth, whether you have a Biblical frame of reference or not.
As mentioned earlier, this book is a must read for wives. It's a "should read" for anyone looking at marriage in the near future. I probably will also recommend portions to some of my single friends--just because Dr. Laura gets so "into the heads" of men. I'll definitely be reading this book again in the future.