This past week marked the 52nd anniversary of the release of the encyclical letter Humanae Vitae, by the recently canonized Pope Saint Paul VI.
If you’re looking for a thoughtful, accessible and engaging read on the subject of contraception and natural family planning, you may want to pick up a copy of Patrick Coffin’s book entitled Sex au Naturel: What It Is and Why It’s Good for Your Marriage, or Christopher West’s recent book, Eclipse of the Body: How We Lost the Meaning of Sex, Gender, Marriage, & Family (And How to Reclaim It).
I heard Patrick speak on this topic when he was our guest catechist in the RCIA Hollywood program. You can listen to Patrick’s presentation here:

 
His book has received positive reviews from Kimberly Hahn, Cardinal George Pell, and others. There are also a couple of useful reader reviews on Amazon’s website. One reader writes:

Patrick Coffin’s book is a friendly and accessible introduction to the Church’s teachings on sexuality, especially contraception, and how living those teachings improves marriage. It is funny, down-to-earth, easy to read, comprehensive.
I highly recommend it for anyone who has questions or doubts about the Church’s teaching, or for anyone who has a friend or family member with questions or doubts. I thought I was well-versed in this material; but even I was able to gain from Coffin’s perspective and learned a few new facts as well as some new ways of presenting the information….
Above all Coffin presents all of these teachings with love and mercy and not with an attitude of bashing the infidels. The book is an invitation to a cordial discussion, one that says: “Hey, even if you disagree you might at least hear me out and understand why I hold the position I do.”

If you want a better understanding of the Church’s teaching, or want to help others understand it, this books sounds like a great resource.
See also my post from 2008 on the 40th anniversary of Humanae Vitae.