This book was a great in-depth look at the origins and evolution of the Christian right more broadly and Focus on the Family in particular. Despite the title it was pretty even-handed, treating his subjects with relative objectivity. As someone used to just thinking of the religious right as big bad guys, it was fascinating to seea more nuanced look at the different branches of the movement, the different ideologies, and how they relate to the larger evangelical community. The prose is very engaging, and it's definitely a page-turner for politcal junkies, particularly folks who closely followed the 2004 election and the state and federal campaigns for anti-gay marriage amendments.
Oddly enough, the most interesting chapter was towards the end, looking at how the Democrats post-04 were trying to close the gap with Republicans among religious voters. The book was published last summer, I believe, but it pretty much describes Obama's whole approach to talking about religion. It's almost prophetic.