"The Surprising Secrets of Highly Happy Marriages" by Shaunti Feldhahn is a book that attempts to give tips and advice about enhancing your marriage with your spouse. As with any book that attempts to offer relationship advice, some of it is great and some of it I wouldn't necessarily agree with.
For example, this book offers up the idea of "keeping score", just not in the traditional sense. This book proposes that you should keep score of how much your partner is doing or giving, in order to give back to them even more. I found this thought to be a little bit flawed - If you have to keep track of what your partner is doing to support his family, in order to establish how much of yourself to give back, I think it puts too much focus on the wrong things. So this was one of the "I don't think I'd try this" sections of this book.
The book, does, however, offer some good advice for happy marriages, such as looking higher, being plugged into a faith community, sharing key values, and trusting God for the outcome. I think this book offers some healthy and realistic advice that can be poured into marriage, but as I mentioned earlier, I think you have to look at it from a perspective of what will work for your particular situation, rather than an all inclusive marital fix.
Overall I'd give this book a 3/5 - some good advice and observations, but not all of it is what I consider to be healthy and productive. Just like any other self-help book, I would take away from it what works for me, and leave the rest.
FTC DISCLOSURE: I received this book for free from Multnomah Publishers in exchange for an honest review.