It's available on Amazon in both paperback book and Kindle versions. Here is the description:
Of course you are welcome to read each post here on the blog as well!
Posts on NFP:
9/6/12 On Marital Chastity, Part I
8/23/12 Modernism, Phenomenology, Personalism…and TOB
8/10/12 Family Size and Openness to Life
7/18/12 Divine Providence and NFP
7/16/12 Melinda Gates, 1flesh.org, and NFP
7/2/12 An NFP Rant (Warning: This is a RANT, not gentle persuasion!)
6/27/12 NFP is Not Required
6/13/12 What Do You Mean, "Contraceptive Mentality"?
6/6/12 Sex for Pleasure Only: Always a Venial Sin?
5/24/12 Is "Sex" a Gift from God?
5/1512 “What’s Your Beef with NFP?”
5/8/12 The Saving Grace of NFP
5/2/12 Why Are We Pushing NFP?
4/30/12 Marital Chastity, Fruitful Multiplication...and NFP?
4/26/12 On Clarifying the Licit Use of NFP
4/20/12 What's Wrong with NFP?
3/5/12 NFP and the Duty of Motherhood: Transcript of a Sermon