The problem with this book is that it is poorly argued and self contradictory. The NFP method is a form of birth control. The author's eventually rejected their own position. For a better treatment of birth control, see Bryan C. Hodge, "The Christian Case Against Contraception: Making the Case From Historical, Biblical, Systematic, and Practical Theology & Ethics" (Eugene, Oregon: Wipf & Stock, 2010).
I thought the book was a good, Biblical sound viewpoint into something that is "culturally" not accepted today. I was not sure if the Natural Family Planning is Biblical or not, though. Overall, I liked the book. It motivated me to research the topic more in depth.
This book is a perfect little size to read in one sitting, or by chapters with your spouse as a devotion. It is also ideal for passing along to almost any friend or family member without feeling like you've given them too much too read or something that is too "high brow". It is intellectually stimulating and pleasurable; profound, yet simple; refreshing, but still convicting. While strong and direct, the Torodes manner of communicating their ideas is not offensive or proud. So, even though I had some points of disagreement, I was not turned off. Overall, this book articulates the truth that has been on my heart waiting to be heard. Thank you, Sam and Bethany, for getting the word out and not letting your age inhibit you from speaking God's truth. I'm going to order several copies to start passing out!
It's gotten way beyond tiring listening to the anti-contraceptive crowd as they try to align their own self interests with scripture. I have a real original message for you - let's try and love the people that are around us now - the poor, the hungry, the homeless. It's sad to see the gullible once again make a diety out of the god of fertility.